I know, I know, WD-40 is for squeaky hinges. But it's also a secret weapon for spray paint. Spray it on a microfiber cloth—not directly on the car—and gently rub the paint. The lubricant breaks down the fresh pigment without hurting your clear coat.
If the paint is a little stubborn, try Goo Gone or a similar citrus-based remover. These are like the polite negotiators of the chemical world. They ask the paint to leave, instead of screaming at it. Rub gently, and watch it dissolve.
Soak the area for a minute if you need to. Then wipe away the mess. It's oddly satisfying, like peeling off a sunburn. Just don't scrub like you're trying to erase a mistake on a test.
When It Gets Sticky: Clay Bars and Rubbing Alcohol
Alright, so the gentle stuff didn't work? That's fine. We're moving up a level. Get yourself an automotive clay bar. This sounds fancy, but it's just a lump of magic putty that lifts contaminants.
Lubricate the area with a spray detailer or even soapy water. Then, slide the clay bar over the paint. Don't press down hard—let the clay do the work. It'll grab the spray paint particles and pull them off, leaving your car smooth as a baby's… well, you know.
Rubbing alcohol is another solid option. Use the 70% kind, not the 90% Martian fuel. Dip a microfiber cloth and dab at the paint. It dries fast, so work in small sections. This is great for light overspray, not thick gobs of paint.
Remove Paint Overspray From Auto Glass at Byron Wells blog
Important warning here: Never use nail polish remover or acetone. That will eat through your clear coat like a piranha on a goldfish. You'll end up with a dull, cloudy spot that makes you want to cry. Just don't.