This is one of the FAQs on the "notification of shipment" email that Apple sent me to tell me Aperture 3 is on the way.
What if I will not be available to receive my shipment?
Most of our shipments contain valuable items, so our carriers are required to obtain a signature upon delivery. However, orders delivered by DHL Global Mail/United States Postal Service do not require a signature. Please note that the carrier makes three delivery attempts before they returning your package to Apple
That is just plain silly.
Anyway. I bought Aperture 3 in hopes that it is faster and less of a resource hog than Aperture 2, which is a PIG!
I'm off to snowboard for the day! TGIF!!!