If he did, he didn’t do very well or for very long. If he tried and failed, he will try again, until he succeeds, at which point it will be obvious. If what you fear happens, as well as removing the obstruction, try another camera, a hidden one, looking at the first camera. Don’t let him see you mount it, turn off the blue record light, and hope you get lucky and catch him blocking, what he will hopefully think is the only camera.
Still looks like a moth to me, so I doubt that’s going to be needed, but you never know.