I just wanted to second...or third...or fourth... the suggestion to please please PLEASE call and/or e-mail Disney directly if you encounter any of these such problems. Although I have never used a GAC (I might have to at my trip in October though...

)...I was an attractions cast member for about 3 years, and have alot of experience with helping (or trying to help) Guests with GAC's, so I just wanted to throw my $0.02 in.
When I worked there (and from talking to people who still work there...) "Sensitivity-training" is still not nearly up to par. I noticed that most CM's would interepret the exact same GAC card (at the same attraction) in different ways... Usually do to poor training/having NO clue what to do...occasionally though they were just rude/obnixious people

.
Hopefully, if Disney hears enough complaints about the service guests with GAC's recieve they will try to improve it...
Also, not all GAC's can apply at all rides. (I.E. There really is no logical way to have a "shadded" wait area at the Magic Carpets... or to use a stroller as a wheelchair on the swiss family treehouse)... Sometimes Cast Members may not have been properly trained with how to deal with a specific need that seems diffult to meet at a location (if it's really an issue please ask to talk to a coordinator)
If you encounter a just out and out rude CM, please try to remeber there name and where the work...mention this to Disney (yeah...I feel sorta like a rat for saying that...But I saw a lot of CM's doing horrible things (I tried to step in and remedy it when possible...but I couldn't always...) that they never got reprimanded for. (It usually takes more than one guest complaint for a cast member to get in any kinda trouble...so if Disney see's the same CM's name showing up over and over...they can usually take steps to remedy that situation)
Also, unfortunatly an increasing (or so it seems) number of guests try and "take unfair advantage" of their GAC privileges (i.e. demanding front of the line...when the card says "may use stroller in place of wheelchair" or "seated in front row"), So often towards the end of the day (especially busy ones) CM's could be a little twitchy about the cards...and unfortunatly we often tend to see everyone with a card as trying to do that

It's not fair to anybody...and tends to ruin everybody's day... (guest and cast member alike)
Sorry..that seemed long. I'm also very sorry that anyone here had to suffer because of an incompent/un-trained/rude cast member while on vacation
