Paint Overspray Cleanup

You might have luck with one of the 'environmentally safe' graffiti removes you can get at the hardware store - the ones that don'e use a solvent type chemical. I used some once to strip paint from a dash bezel and it worked well without harming the plastic. Has to kinda soak and soften the paint. Don't know if it will work with on a cataylized primer. Goo Gone might work, but it's a solvent. Goof Off is even harsher and will attack some plastics.

Depending on the level of overspray on the side markers, if chemicals don't remove it, you might have to wet sand and polish them (off the car). Might get away with rubbing compound and polish.