Would that stop IR LIDAR and/or thermal cameras? Because I'm assuming that they've got something akin to what the latest iPhones have in that regards, since they'll want to be able to monitor people in a dark room.Utterly useless since it can be defeated by a sheer black cloth, but you gotta admire how they're willing to hang their massive greed out where everyone can see it.
Still, the better answer is to not buy that piece of shit in the first place. Because I wouldn't want to subject even one person it it's invasive monitoring. I'm assuming that whatever camera tech they're using is not just going to monitor the number of people in the room, but also viewer engagement, heart rate, estimated emotional response, etc.