I have a question about the logistics of using the hotel express pass system. When our family goes we will have 4 adults and 2 children. We are planning 2 days in the parks, so we are going to get one room for one night to crash in. This will give us room keys for 3 adults and 2 kids. That will leave my father-in law without an express pass. Will we be able to swap our key cards to let him use express pass at times? Am I correct in assuming they don't care about the name on the card, and only check if it says adult or child? This system would work well for us because my oldest loves riding multiple times and my youngest can't ride everything so he spends a lot of time doing other things with Grandpa anyway.