Those are the kind of marks I get when I tiurn left too soon in a tight place and swipe something with the right rear corner. Done it twice, even while watching carefully in mirrors on that side. Looks like you are clear, but not quite, need another 1/4 inch or 1/2 inch before swinging the rear,
You can do it in the park, gas station, even on the road, brushing the vehicle in the lane next to you, and you don't even know you've done it.
Don't know that I've ever done it on the left side, in a usually tighter right turn.