I’m guessing the OP isn’t looking to paint a car in his driveway but rather looking to see if his dipshit neighbors are braking any laws by doing so.

I have no real answer but would be surprised if there weren’t OSHA or EPA regulations regarding painting a vehicle. Obviously, OSHA regs likely wouldn’t apply since it’s not a business but maybe you could unleash the wrath of the EPA on them if everything isn’t up to code.