My son was a passenger in a car parked at a gas station where they had gone in to grab a snack. The guy in the next car came running out saying they had dented his car with the door. My son said there was a small spot of paint the same color as their truck on the kids door but he had not hit the car when he opened his door. That he was absolutely sure of. They decided to just leave as they didn't want to get into a fight with the guy as he seemed extremely confrontational. Now they are worried about being charged with hit and run or something for not trying to prove that it wasn't them. Do they need to worry?