The response from Berkeley came via email. I forgot to mention that earlier. I guess it saves them a few bucks on postage to do it that way, but I think that's a tacky way to get an important bit of information. To be fair, I did send them my application by email, but I also paid them $60 for the privilege so hey.
Anyway, the day after I got the email I sent a response, asking if I could appeal the decision or get on a waiting list. I mentioned that I'd just been to the San Francisco Bay Area, spent a day in the Asian Art Museum, briefly toured through Berkeley and fell in love. I don't expect it'll help, but they've already rejected me, so it's not like it could hurt.