Check out
I-75 RV Park in Tifton. It's *literally* next to an exit ramp and noise can be an issue - wasn't a problem for my wife, kids, and I but my mother-in-law was with us and she said she didn't sleep well.
No frills kind of place. Very simple. But, we got in/out with our 42' fifth wheel and 22' truck. We actually were too large for the space and offered to unhitch. The fellow working put a traffic cone behind us and said we were good to go.
Pretty cheap- under $30 for the night with a Good Sam discount, if I recall.
Pictures that I captured:
https://www.flickr.com/photos/dougsetzer/albums/72157702537914804