Just in case you don't already know, there is a Best Friends Pet Resort across from PORQ where you can board your dog. Also, if you ever decide to take a walk on the dark side, the Universal Studios resort hotels allow dogs. We've taken our German shepherd with us twice when we stayed at the Hard Rock Hotel.
When we would leave US & do a day trip to WDW, we would put him in Best Friends for the day. We dropped him off in the morning & picked him up when we were done. It worked out really well & we loved having that option.