Glad the experience was alright in the end. I swear, they could avoid so much disappointment for guests if they were just more clear in their communication.
If they said something like: In order to use your hot tub, speak with your room attendant who can have it prepared to a desired temperature at any time which is convenient for you. The hot tub will maintain that temperature for approximately one hour, before beginning to naturally cool. Your room attendant will return a later time, convenient for you, to drain and clean your hot tub ahead of your next use.
Instead, they made a mess of it and suggested you'd be policed to one hour at a time and your attendant would return to chase you out!