so i bought my iPad at best buy last weekend. the past week I've had wifi issues -- iPad disconnecting from network and/or forcing me to re-enter the password. a bit annoying. can I walk into an apple store, buy the apple care, and use it on the spot to get a new one due to the wifi problems? if i even try to return this to best buy, they'll want the 15% restocking fee. ugh. thoughts?