Again, the "stealing" is not from the campground owner. The "stealing" is from the other campers because you're Autoformer is making it (their voltage levels) even worse for them. Stealing may be the wrong term to use ... but there is some basis in campground owners perferring that you not use Autoformers for the good of the rest of the campers.
It's a tough call as to what to do in this case. I guess it's every man for himself on this one. FWIW, the "original sin" is being committed by the campground owner in having a campground inadequately wired.