You can check the AP rates just by calling the hotel to find out. IF you determine the AP is a better rate, book it. When you arrive, IF they ask to see your AP (which they may), tell them you plan to go to the park to GR to upgrade to AP and you will gladly come back and show them....if not, you would pay "rack rate"...or whatever. When we went in Feb., we only had the "voucher" for the AP to take to GR at the park to obtain AP. We explained that at checkin and they were cool w/ it.