See this link RV Pavement Camping: Pilot Flying J expands RV amenities
FWIW - One of the best RV Parks I stayed in (sans road noise) was west of Shreveport, LA, run by TA. It was about 13 dollars a night (passport America), had concrete sites, easy to get in and easy to get out. Like most places, it's near the Interstate, so road noise is s problem.
If you are a Good Sam Member, then get the Pilot & FJ Credit Card, you can save up to 6 cents a gallon on Diesel, and if lifetime member (special prices if veteran) you get 9 cents off. Check their website for all the information.