Sparks are flying and I wonder how much this is real problem, how much problem fabricated for trolling.
I've been on both sides of the fence and never had a problem on any side.
FlyingJ usually have separate areas for RV and where one is not marked, RV are allowed to park on car lot, where semis are not.
I never wanted to park RV at truck lot becouse of engines idling overnight even when temperature was 60F
Have not seen overflooding truck stop in California, although have seen one in Las Vegas.
But as pointed, lot of options for trucks to park and unlike luxury RV -stopped trucks are not red flag for parking officers.