dude, there's not gonna be any way to do it. I guess you could call Iowa to get a new pin number sent to you. But by the time it came, your scores would be there via snail mail.
I'd be curious if anyone has any different answers.
I'm sorry--I think they're firm @ not giving out passwords over the phone. For the April mcat, the scores showed up on my amcas app under the print preview @ 3-4 days before I got them in the mail, if that helps you.