RV/Motorhome parking

I just recently purchased an RV and was fortunate enough to get VETMED RV passes for all games but GA and AL. Can anyone give any advice about other parking options besides Farr Park. A fellow season ticket holder told me that there used to be a first come first serve RV parking somewhere near Nicholson. Also, the grass lot right beside/infront of "Walk On's". Can you park a motorhome there and tailgate? Any help or advice would be appreciated.