I ordered 50 with express shipping. I have a feeling that even in the 0.0001% chance that it gets shipped, the cards will either be deactivated remotely by BB, or BB will simply put $15 on each card and act as if they have no idea why anyone is upset.
If you do get any in the mail, my advice to you is to go online IMMEDIATELY, and use your gift cards to buy different gift cards or merchandise.