I'm traveling away from home and will be in San Francisco on business. I have a 64GB iPad Air that I want to exchange for a 128GB iPad Air and today is my last day to do so. Normally I would take care of this at my home Apple Store but because today is my 14th and final day to return/exchange, and the Apple Store in San Francisco has the 128GB in stock I'd like to exchange there. After this ridiculously long preamble my question is this: can the Apple Store transfer/restore my current iPad to the one I'm exchanging for? I'm away from my MacBook Air and last backup and would hate to fly all the way home without the documentaries I have on my iPad - could make for a long, boring flight