If I used AAA to book room-only @ $84 a night, and change to a package with this code, won't I in fact pay more? Isn't a package more than buying seperately? I wasn't getting hoppers or water parks anyway. Should I just leave this off or can I get a AAA + code discount?
You can not get both, you can either apply the AAA discount to your stay or apply a code.
If the code is better than the AAA discount, you can have your AAA agent apply the code to your existing reservation.