I specifically e-mailed Priceline about this subject two years ago and never got a straight answer.
So (not part of my question) yes the car rental agency may charge you all the standard charges that you would be charged had you rented directly, that includes license recoupment, sales tax, surcharge for riding the shuttle to the airport, etc.
BUt (my opinion) they may not demand that you buy insurance or a tankful of gas. If you want these, fine, but if they refuse to rent you the car for the Priceline price plus normal taxes and charges, I would expect you have a right to a refund.
Why? Here's one reason why. What good is a $15.00 per day Priceline deal with a mandatory $25.00 per day collision waiver compared with a $25.00 walk up deal at another agency with a $10.00 optional collision waiver???
Drivers under 25 should not rent with Priceline even if/when Priceline allows them to. There is no telling how big the under-25 surcharge will be, see the preceding paragraph for an analogy.
More Disney tips:
http://members.aol.com/ajaynejr/disney.htm
9/65
Disneyland
3/75 (World Inn* off I4 near DD)
4/85 (Kon-Tiki* on 192)
'80s Disneyland once or twice
7/94 PORiv
9/97 ASMu
11/98 ASMu
12/98 (Knights Inn on 192)
9/99 ASMo
12/00 ASSp
11/01 ASSp planned
*no longer exists