I forgot to select applecare + when ordering in the rush.. i'm assuming it will be similar to iPhones/macs that you have a month to get it after the purchase?
I tried and it wouldn't let me add because I didn't have a required product in the cart. If it is like iPhone, you can just call it in - they don't care to even look. Even when I purchased in an Apple store he didn't even want to examine my iPhone.