The folks who pull trailers who have posted on this site make the point that they stay with their vehicle, ready to move as needed to unblock stalls. Given the choice between blocking fellow Tesla chargers, most of whom should have some understanding of charging issues, and blocking some ICE parking, I'd go with the former. Most Tesla owners I have met would be understanding as long as the inconvenience (waiting while I unplugged and moved my rig) was minimal. Of course, there are a few who fit another image of Tesla owners....anyone else catch the guy in the "Bosch" series?