With the Access Pass I have never been charged an admittance fee. Camping has always been at the 50% rate. This has included several contractor/concessionaire parks. Different rules for different passes I guess. I even get free admission to Louisiana parks and discounted camping using the Access Pass. My own state of Mississippi does not even do that.
WBCCI 10656 Southeastern Camping Unit
Associate European Unit
2006 Safari LS 23 ft
Formerly 1964 Bambi II
"I got a fever and the only prescription is more cowbell"