I just called back again to double check, and "Nikki" checked with guest services who said that dogs are *not* allowed on the concierge level (so glad I double checked). She offered me a regular room at the same rate, but, if we do switch, I am going to push for the lower rate since, when I made the reservation, I was told dogs were allowed there. Now I'm ticked!
As far as barking goes, is your beagle used to being left in strange surroundings without you? Will he curl up on the bed and go to sleep, or will he become agitated? If you're going to fly with him (which I would NOT suggest during the summertime), he'll have to learn to be in a crate, which would probably be for the best in the hotel room, too, if he might get restless. Don't forget you'll have to plan breaks in your park day to come back and walk him.