I also do a lot of RV travel from Dallas/Ft Worth to the gulf coast on I35 and I37. That's one long drive for me at least. Road side parks and rest areas are few and far between stops. But I've noticed many big rigs there. But yes, I've stopped at several Travel Centers just to get out and relax. I even drive at 75mph in a 70mph zone on the freeways and I still get passed by these big rigs. I also don't park for the night at Wal-Marts though I do fill up there (gas) MH. CG's at this time of the year are packed. No vacancy, lol. I've been known to pull into a hotel off the freeway and park there and get a room for the night. Got to have that cold a/c room. So far no one has complained about my Class A taking up so many parking spots there. The rest areas in Texas that I see have a large sign that reads: trucks/buses parking. Well I'm driving a bus so that's where I park.
Its a privilege not a RIGHT!