Hi, I got a black wi-fi ipad for my birthday present from my brother in CA. However, I want to exchange it to the white one. I haven't opened the box. Would I be able to just do a quick swap in the local Apple Store? I don't know the order number and I don't want my brother to know that I swapped it. It just doesn't feel right for me. Would that be possible? What should I say? Just be honest? I was afraid that I might look like someone who just stole an ipad and then want to swap it into a good one Thank you!!