i think there has to be a severe disturbance for the AAMC to do anything,and from what i've heard, all they do is send u a letter showing that there was a disturbance at ur center and u can send that along to med schools to explain y u didn't perform ur best......but go ahead and try it, there's always a first time.
another thing, someone was telling me that they went to see where the testing site was so they wouldn't get lost on saturday and there were people there taking practice exams, "to get the feel of the room". has anyone else done this? i didn't even think about it. personally, i'm not gonna do this, but i thought i'd just throw this idea out here in case anyone thinks its gonna help