Well, it's too late now to book the FTP, but you could try with either AAA or DC discounts and see if they have anything left. Sept 1 is Labor Day, so that being a holiday, it may be tough. Did you call to see if they have rooms available?
You might try calling CRO and asking for a moderate resort, and see if they offer any upgrades to a deluxe resort. Good Luck!
People have posted that they asked for CBR and then were offered Wlderness Lodge or AKL for a very good rate. Otherwise AAA or DC maybe they will release AP rates next week. One can only hope