I received nothing, no paper work or indication on the packing slip. When I checked our 2 phones on Friday, none of them showed Applecare+. I just waited, and figured I would call them when everything died down a bit.
Checked serial #'s last night and both phones now show Applecare+. So, give it some time, if it doesn't show up in a few days, call them or go into a store.