If you are a AAA member, you should be able to get a discount on a room. That is assuming that all the available discounted rooms at the resort you want have not already been booked. There are only a certain number of available rooms with this discount, but getting it for one night should not be too big of a problem.
If you are a passholder, you can get discounts on room only reservations. Also, often Disney will relase a room only code to the general public. You can always book with AAA discount and then try and get a lower rate if a general code is released for your date.
Yep. I did this last weekend---had to call twice though. One CM just wasn't very nice and just kept sayng "No" to my questions about any discounts available for room only or AAA discount or PIN codes etc. He quoted $163.13 for 1 night at POP.
Called back the next day and got a wonderful CM--so nice--took her time with me gave me the AAA discount which was peak--Easter weekend. Asked what we would be celebrating ...I told her DD turns 21 5 days before we get there and she said she would make a note of it because sometimes the resorts do something special. I am hoping she sprinkled a little pixie dust for DD!
She quoted $147.94 for 1 night at POP.