When traveling coast to coast we stop in paring lots (leave the rest stops for the truckers) for dinner, bio breaks, sleeping, etc. NEVER level or stabilize, never unhook, always tell the business we are out there and we buy something we need. Note my signature we have a 2001 Silverado and even week-end camping I may or may not unplug the TV. The battery does disengage with the key off. Tested with meter.
Yes we have been un-level many times, I maybe ignorant no-one never told me the fridge does not work if not perfectly level, in all my years and TT's I've never had a problem, our last TT we had for 13 years and only stayed in a structured CG a hand full of times. Now that I see this post I probably will have an issue :-( lol.