I also know that you can charge tickets to your room, and then pay for the charges with RCs. My guess would be yes.
I know you cannot use RC at the Absinthe ticket booth. As for room charge, I would check with the hotel first. Like some of the CP restaurants, you do a room charge and then try to pay with RC, they end up being 2 RC for every dollar, as opposed to the usual 1 to 1 ratio. Since CP doesn't own the show, it wouldn't surprise me if they did something like that