Has he opened a case? Could be he travels to China on a regular basis and is away from his U.S. address right now.
At least it's sitting in a U.S. Post Office and should get sent back to you if it never gets claimed.
I've been reading horror stories lately about International customers not picking packages up at their Post Office that are waiting for customs payment on them. They claim "Item Not Received", Ebay pulls the money from the seller and refunds the buyer even though the tracking says exactly where the package is.
Buyer then goes and pays the customs fee before their Post Office sends it back to the States, and they essentially get the item for the cost of their VAT fee.
