The only thing i could think of would be if you sent a SASE with USPS postage on it, otherwise I doubt they'd do special cases... then again I have no idea. I am guessing they have a UPS pick-up or something similar. (I ended up paying a couple hundred bucks and just buying his autograph from UpperDeck [he's under contract with them... although it might change]). If you are just sending an email or letter then what do you have to lose?

EDIT: or if you have a friend with a normal physical address

I would like to send to Tiger Woods, I know it's just a pp, but I think it would still be cool to have, here is my question though, I would strongly perfer it sent to my P.O. Box, but the Tiger Woods feedback all seem to say that it is sent only by UPS, which dosen't deliver to P.O. Boxes. Do you think they will send it USPS when they see a P.O. Box address? Thank You.