One hotel I've always thought would be a great place for visiting escorts is the downtown ALOFT hotel.  It has its own lot  parking a little hidden behind the building for easy access for men wanting to be discrete and/or Texans with over-sized vehicles (lots of trucks here).   The lobby is a large bar, making it seamless to meet and greet in the lobby if desired and the elevators are not keyed access PLUS.. the rooms are reasonably priced, have that W modern furnishing, so a pretty environment and the rooms have private SAFES.  You can lock up any cash and valuables ... I always thought that is a great bonus of the rooms there.  Oh ,, and I almost forgot.. the rooms all have little fridges.
Enjoy your stay in big D.