Updated Update - Well, Blaise confirmed it when he went home early. The book is not there. This means that Amazon/UPS have created a situation where the false positive deliveries will more than likely anger a lot of excitable people (like me). I believe that the delivery means that it was successfully delivered to the distribution trucks in Columbia and I'll still be receiving it sometime tomorrow. I can't confirm this as I don't want to do any searches that might result in me stumbling upon a spoiler. Ah...obsession.
Update - Constant vigilance pays off!