Just remember, just because one store got theirs like that doesn't mean yours will. You could have gone to a super busy store and 20 people could have PO before you did. Just don't get your hopes up to high.
I actually asked when I went to the store around 5PM last Friday, they had 4 iPhone 5 PO'S (Verizon & AT&T), and I was the first Sprint PO (5TH PO).
So I think I'm fine.