It could have been Aliens dressed as a human looking for new subjects to study, maybe a new anal probe they wish to trial. Call the FBI, agent Mulder will look into it.
Somebody paranoid. LOL! Who cares if he took a picture of your car. U been in a hit and run, then I would worry. Probably just acting the jerk, the damn camera may not of even had film in it. Don't worry, unless like I said you have been in a hit and run, then ditch the car and fast!