[zorrophreak]

I could be wrong but in the past, when picking up items from the post office, even if they didn't require signature they'll take one anyways. Along with this, it will be marked as picked up at PO. One more thing, you can't even claim it was someone else at that point because they see your ID to ensure that you live at that address.

Not advisable, see if you can get a friend. Or try to claim it wasn't in the box. Maybe break into the box and make it look a little bit beat up and maybe say it wasn't in the box and that's how you got it from the carrier.