On our recent trip back home from Sedona, we stopped at the Ehrenberg, AZ Supercharger (better amenities than disgusting Quartzsite).
So in the pull-in stall (I had a bike rack on the back, so this type of stall was preferable) was an Audi e-tron. When the guy came back, I tried the friendly "that doesn't look like a Tesla," only to be greeted with a hostile "well, there are plenty of spots open and we were just here for a short time." Note the sign on that stall specifically states it is for Tesla charging ONLY.
I explained that while there were spots open, that could change in minutes. He just shrugged. I finally lost it and said that taking up a charging spot when there were myriad places to park was the action of an asshole. I didn't go as far as asking how he'd feel if his next DCFC station was blocked by Teslas or ICE vehicles.
Indeed, five minutes after this moron left, all stalls were occupied (by Teslas, charging).
I should have taken a picture of this jerk's car.