Security is currently high.
This week I stayed at the Starway King Garden Hotel which is basically across the street from the Kama Club. Upon check-in I noticed more than the usual number of notifications about "visitors" to the guest room. All visitors have to register and they must leave the guest's room by 23:00.
Also, something new at check-in was the requirement to write your phone number on their (Police) copy of your passport page. Must make it easier for them to connect-the-dots.
At about 19:00 a table barrier was set up in the lobby in front of the elevator doors. It was manned by an older prim and proper woman with a red armband. You could just tell she would take great delight in ruining your mongering plans.
The woman had a sign-in form. The "visitor" was required to check-in at the front desk. Then the elevator monitor would sign the visitor in on a page. When the visitor left, they would be checked off as not being in the room with the guest. Presumably at 23:00 they would know who was still in the guest rooms and come knocking.
At 19:30 I checked out the Kama Club. There was absolutely no one there except a bartender. I understand that the action gets started later in the evening. However, taking a girl back to your hotel later would be problematic in view of the scrutiny in place. Possibly a hotel further from the Kama would be less stringent in trying to control human behavior?