We're going to DL next Sun and are planning on buying AP's. Sunday is a blockout day but I know that we can still use them on the first day we purchase them even though it's a blockout, correct? Now, can I buy them in advance at the Disney store here, or do I have to buy them that day at the ticket booths in order to be able to use them that day without paying the additional fee for a blockout day? Did that make sense? I would just like to buy them beforehand in order to save us some time that morning. Thanks!