As some others have said, Pigeon Forge has some very nice RV parks but getting in and out can really try your patients. If coming in on a weekend or holiday I would suggest arriving late at night or very early morning. Call the park and let them know what you are doing and I'm sure they will work with you, late or early. We stayed at Clabough's Campground one weekend and left about 11am and it took us roughly 2 hours to get from Pigeon Forge back to I40.
I suggest eating at Joe's Crab Shack. I always get Joe's Classic Steampot, and a couple or three beverages. Good eats!