OP is definitely high on the room-check list due to Las Vegas Security, and red flag of being Highly concerned about Privacy/DND. See below.

Las Vegas is doing room checks especially after the shooting - https://www.newsweek.com/las-vegas-g...-hotels-711449. There's another Interesting Loyalty Lobby article about entering rooms: https://loyaltylobby.com/2017/12/28/...ay-to-inspect/ :

• Guests overly concerned about privacy.
• Guests refusing room cleaning for extended period of time.
• Those taking photos and notes about the hotel.
• Switching rooms a number of times.
• Requesting specific rooms.
• Extended use of DND sign.
• Using cash for payment.
• Guest doesn’t leave the room for extended period.
• Guest leaves the room for extended period.

So the trick is to be as unsuspicious as possible. And also make sure you can pull up your pants in under 3 seconds.