(all of that tested in 1.2.2, btw)

@Paracosma I'm starting to wonder if she will spawn in when there's traffic. I will try travel to north yankton. Yeah she told me once her gps doesn't go that far.

@Starfox1993 Ha, yeah. That message is one of the possibilities the mechanic may send when the mod can't find a good location, as in any "nearest street location" to put them ( again, according to the normal map data you find on the main map).

FWIW, such messages are all stored in the INI. The options for this case (by default) are:
TxtMsg_NoVisitForLocale0 = How am I supposed to get there?
TxtMsg_NoVisitForLocale1 = My GPS is good, but not that good.
TxtMsg_NoVisitForLocale2 = Sorry, that's not somewhere I can get to.
TxtMsg_NoVisitForLocale3 = Call back from somewhere I can find.
TxtMsg_NoVisitForLocale4 = I can't find a good route there, sorry.

And, yeah, while on the main map, the mechanic will arrive if you call from a place of dense traffic. But be ready to either wait for them to get through it, or the show of them wedging through (and sometimes under) other vehicles to get to your location, haha.

If you the work site is in the middle of a multi-lane highway, yes, the mechanic will pull up, stop in the middle of it, and walk to your vehicle through traffic. I purposely left it like this for the amusement / emergent factor of it, ha.

The only caveat to calling the mechanic whilst in traffic is if the engine-side of your vehicle is blocked -- if the place where they need to "open the hood" and work from is obstructed, the mod will say so (in a subtitle message) and prevent the visit to begin with.

And if the engine area becomes obstructed while they're on the way, the mod will again warn so, and give the player a handful of seconds to rectify the problem (if they can). If it is unblocked, the repair proceeeds. If it remains blocked, the visit is interupted, and the mecanic leaves (then charges for for the hassle afterward).

Which side of the vehicle has to remain clear depends on where the engine is, and what sort of hood (if any) it has. For front-engine, normal-hinge vehicles (most cases), it is in front of the vehicle. For rear-engine, normal hinge, it is directly to the rear of the vehicle. If the hood is on a reverse-hinge in either case (see a tow truck, for example), then the mechanic has to reach the front-left or rear-left side, instead. The obstruction logic follows all these rules, as well.

@Paracosma I did it bro, I spawned Roxie into North Yankton. https://pasteboard.co/5NDHkuap3M80.png

@Starfox1993 Ha, nice :)

@Paracosma She can spawn into any map as long as the map has traffic path nodes.

@Starfox1993 Right. Or, if using those hacks options (in tbe hacks menu, btw), you can force the mechanic to warp directly ahead of your current location .Likewise for warping directly away.

Obviously I use the API that relies on traffic nodes for the sake of verisimiitude and reliability in their driving w.r.t the path they take -- of course, within the limits of what the game's underlying NPC driving logic can provide, ha.

I have it as a backburner thing to look into the viability of making their driving style & underlying api use (if possible) a matter of INI settings. But that's kinda at the boundary of what I consider in-scope for this kind of mod, ya know? Ha. Time wil tell.

For now, I am wrapping up dev of 1.3 - mostly quality of life and immersion adds, fwiw -- for release this weekend. Then I'm gonna really focus on what can be done about this SHVDN vs. Enhanced situation, so I can perhaps. improve my mod to either straddle both SHVDN3 and SHVDNE, pick one, or remove Enhanced compatibility -- that last move is one I don't want to make, of course.

Thanks for checking out the mod! I'm open to all feedback in the comments.

UPDATE: Version 1.3 is on target for Jan 24-25:
. (feature request!) stolen vehicle detection: on low regard, the mechanic may report you to the police (raising a wanted level) for having a stolen vehicle. It lowers their regard in any case.
. (feature request!) oil & fuel: oil & fuel are part of the repair/billing process; refills to either will be called out on the bill.
. (feature request!) repair times: settings to change how long the mechanic spends repairing different vehicle types.
. not paying on low regard can lead to the mechanic reporting you to the police. The "dont pay" case has been revamped overall. too.
. killing the mechanic will result in the mechanic reporting you to the police from their hospital stay.
. Improved adaptation to and logging for Enhanced.

Meanwhile ... PROBLEMS with 1.2.2 on Enhanced? ... See below in the description. SHVDNE should help.

Ah ... after a few weeks of trial-and-error ... I've got it working: the code to persist a vehicle's state, then repawn it exactly as-it-was later. (I know, lots of other mods do this, but I'm new at this). Anyhow., here's how I plan to use it:

V 1.4 (next weekend ETA) will have VEHICLE INSURANCE features something like this ... Insure a vehicle (car or motortype, initially) with the mechanic, and in the event that it gets totalled or lost, the mechanic can provide a shiny new copy of the vehicle as-it-was when insured. On low regard, they'll leave it somewhere for you to go pick up (with a blip, etc); it may be far away, but too bad. On high regard, they'll drive it directly to you (much like other insurance type mods / gtao does). And in that case I can make the vehicle invulnerable during the rendezvous so that it arrives undamaged.

Meanwhile ... Verson 1.3 is locked and loaded for release this weekend. It's got feature requests and other fun new features in there ...

@Paracosma I thought of some more ideas just now. If you don't pay, she pulls out her phone and calls the cops with a 2 star warrant, or your car doors become locked and a tow truck impounds your car away HaHaHaHa.

@Starfox1993 Ha. Certainly doable. And again, suggestion appreciated!

Meanwhile, for this 1.3 version, if you don't pay ...
1. You lose regard
2. If your regard is (or sinks to) low or worse, they call the cops shortly after leaving the visit area (or the visit ends otherwise), accompanied by the peeved text they send about not being payed. (Texts configurable in the INI, of course)
3. the wanted level for this is configurable in the INI, and defaults at 1 star. I set it consistent with what usually happens when you are reported stealing a vehicle or causing a disturbance: 1 star.

For now, the only 2-star level the mod gives you is if you kill the mechanic . Again, this can be figured in the INI, and my default was set to be consistent with the two stars the game normally gives you for violent crimes / killing peds (or so I found).

During development, I considered having the mechanic pull out their phone right there to call the cops, but I also considered that this would be too easily interrupted by the player, ha. So I made it so they call the cops only once they are despawned and unattackable, ha.

Of course, I could change this to be just one option alongside the one you suggest, then put it up to an INI setting to pick, ha. Or a random chance, Or all three.

I can add these changes to the roadmap for a future version, but for now I am focusing on 1.4's Insurance feature - a big change to the mod that I think will add a lot of value?

@Paracosma Nice update.

why Roxies car colour wont change? i type different colour on vehicle colour and still pink??

@AlterNova You want to change the color of the mechanic's car? You have to change the INI setting VehicleColor1 and/or VehicleColor2 to a valid enum value as documented in the download's README. Keep in mind that the mod only reads its INI when it starts,either when the game starts, of SHVDN is made to reload scripts. So if you've changed the setting, you won't see it 'til the mod starts again in either of those two ways.

FWWI, here's a copy-paste of the README's details on changing the mechanic's vehicle colors:
---
VehicleColor1 & VehicleColor2:
. The primary and secondary colors of the mechanic's vehicle.
. Uses the SHVDN3 VehicleColor enumeration.
. The range of accepted values can be found here:

https://github.com/scripthookvdotnet/scripthookvdotnet/blob/main/source/scripting_v3/GTA/Entities/Vehicles/VehicleColor.cs

@Paracosma appreciate it mate

@AlterNova Did it wotk for you? I hope so. In any case, thanks for checking out my mod :)