I suggested a karaoke room a few weeks back, wasnโt kidding. You can order drinks and lock the door. Renting the room isnโt that expensive and you play the music loud to block the sounds.
Iโve also gotten some girls phone numbers from certain very important places where they told me I can meet them there if they werenโt scheduled. So itโs possible to just sweet talk the manager to use a room. Probably easier if they know your face.