I have experienced the one with the tractor trailer, and they are usually in and out quickly, so they don't stress me much, I do like the solution of parking parallel to it. I might have done the same with the horse trailer, just on the grass on other side of the chargers.
The Tesla with the cord leaned against the car is funny and technically NOT breaking the rules.
The truck straddling two Tesla spaces with the engine running may not be either. A truck that is larger than the available spaces will often have to resort to taking two spaces, and the snow is covering the signs so who knows if they say 30 Min. General Parking on them. Several near me do. And if it was that cold they HAVE to run the engine, they don't have giant batteries pushing heat pumps to stay warm the way we do.
All that being said, I would report them to Tesla, so that the appropriate actions can be taken. I once came upon the Leavenworth, WA Supercharger on a Friday night when the teen ruffians thought blocking the chargers would be fun. Sitting on the hoods of their pickups or driving back and forth with their 'mericun flags mounted in the beds...
Seemed like they were seriously ready for a fight, but since I saw them first I hung back and reconnoitered. About 20 minutes after I got there the girls were getting bored and the whole group left together, I guess they never saw an electric car that evening (true of many remote EV charge stations). Poor babies. It was a long way to the next charger and I would not have made it, but it all worked out. I had been thinking about calling the cops on them, not sure whose side they would have been on.