Some of those "Big Rigs" the cab is nicer than many RV's inside..
But that said. I've only had a "Problem" one time staying overnight at a truck stop and that was not with truckers. IT was with Meteorologists.
They said "low tonight +19" Weather delivered -6
And that was a problem.
WOuld not have mattered if I"d been in a licensed campground however. -6 would STILL be a problem.
One thing I will say.. My RV has 3 slides. I do have to put out at lest one. So IF I have to "Share" truck parking I try to choose a spot where that extra width is not going to get in the way. For example along the edge of the lot so the slide extends over grass instead of pavement.
Or as I said before. at a Flying-J (most of em at least) in Dedicated RV parking, ONly one time have I not been able to find a vacant Dedicated RV spot at a "J".. That was Halloween last. I parked along the edge of the lot.. Between two semis also likewise parked.. Had dinner, Breakfast Church (All Saints Day, Halloween means day before All Saints Day, Also All Saint's Parish) and back on the road again.