I had a similar thing happen to my GT- at a car show some rather large round guy tried to look inside the window, so he got up close to the side of the car, and he was wearing a metal belt buckle- like a big harley davidson buckle or something. Marked the paintwork a bit. Stopped taking it to car shows after that.
Other times I've sat in my car and watched (mostly old snobby women as the culprits) come bustling out of shopping malls with a phone in one hand, handbags and shopping bags in the other, rubbing and squeezing themselves between parked cars, brushing the metal buckles on their stupid handbags and their #$%^&* all down the sides of other people's empty parked cars. They don't care either. They're too self absorbed and in a hurry to get to their stupid Land Rover or Audi 4WD and terrorize people on the road so they can get home quicker to their twice-mortgaged house and their fake, loveless marriages and yell at their spouses and try to live like Australian Kardashians.
.... I didn't realize how angry those sorts of people make me. I reserve a special place in hell for people who brush up against any of my cars and then turn to me when I challenge them and they give me the "What? Its just a Holden/just a GT/just an RX-7" etc. Those sorts of "people" don't know or understand the amounts of work that gets put into things that I worked and paid good money to be able to own. And then they breed and they raise litters of kids and they teach them to behave the same way- disrespect other people's things because thats how mummy & daddy act, and they're above everyone else. Have you ever parked a long way away from other cars, and then some %^&*#$% comes along and parks right next to you in the middle of nowhere, and they have kids... The kids swing their doors open with the force of 1000 angry Gods, banging them into your car, and the precious little %^&*s dont give a stuff, and neither do the parents.
.... I keep getting out of hand. I'd better stop now. Some cutting and buffing should minimize those marks....