There will be a problem. My wife and I had this happen to us one time, andit just happened to be PO-Riverside. I had a room reseervation in my name. At the time, we were living in South Georgia and my wife, my daughter and her friends left earlier that I did with another group that was staying off-site. I had something at work I needed to do before I left and drove down about 4 hours behind the other group. My wife tried to check-in and couldn't do so. This was pre-cell phone and $4 gas era. She and her friends went to DowntownDisney and made the most of it until I arrived. I asked for our room and was notified that I was the one who had to check-in. All worked out well as we checked-in and headed over to the River Roost to hear Bob Jackson and have a drink. You need to get the reservation in your name.