Yes. And there is more than enough space! They have an entire lot just for semis. Honestly, more parking here than at the nearby truck stop. That's probably why thwre are more trucks here than RVs (on a Thursday night in October, I am the only RV here)

Yes, they do - all week. We’ve stayed several times.

Yes, when I was there a couple months ago they allow RV parking in the assigned RV parking lot.