I bought my 32GB 4S from the Apple Store in Houston on Saturday. First time ATT customer, new sign up, new service, etc. Now, I'm wondering if maybe I should have gone for the 64GB. I reserved a 64GB last night for pick up today. Should I be expecting any issues from Apple and/or ATT for simply wanting to exchange for a larger capacity (obviously I'd be paying the difference in price)? I bought AppleCare+ along with the 32GB on Saturday and so I'm guessing that they will probably just process the whole thing as one big return and then create a new purchase for the 64GB and new AppleCare+. I shouldn't expect any restocking fees and/or having to pay another ATT activation fee, correct?