Generally, I think the girl just uses that as an excuse, but not always.
I've have bouncers barge in and throw a fit about where my hands were too based on what they saw on the camera. Also in Columbus Ohio!!! (and only in Columbus Ohio!!!). When she faced away from me and I reached around and grabbed her tits, bouncer appeared, if she faced me and I fingered her, no bouncer... Hmm...
And there was the "bed" rooms in hollywood (?) East St Louis, Illinios, where I could see the camera mounted in the corner, but with my hands out to the sides she pulled it out of my pants and stayed on top of me where the camera could see nothing.
But then there was the time in Baltimore... After 20 minutes that started with her on her knees in front of me standing with no pants on (when another girl walked in the door apologized and politely excused herself), then her sitting on the makeup counter while I put a condom on (that I found wrapped sitting on that counter) and start fucking her, to her on all fours on a couch in the corner getting it from behind... She pulls out her phone to take give me her number and make sure she gets a text from me when she THEN realizes there's a camera in the ceiling and throws a towel over it so she doesn't get in trouble using her phone!!!
They aren't magic. If you can't see the camera, where the fuck do you think they are that they can see you? Camera's need light too, BTW, if it's dark, they don't see shit. Infrared / see in the dark cameras almost always have a small red light on them (that's the IR light). And, the less light, to get an image, they need a bigger lens, so that tiny pinhole cameras ain't gonna work at all in any kinda slight darkness.
Any skilled dancer knows where the cameras are and how to block them from seeing at least a little extra something...
I do see them in a lot of clubs. I don't see anyone responding to what can obviously be seen in them (except in Columbus Ohio). If girls really want to do something with you, they know how to hide it.