You’d be surprised how much can be done at the edge with current cameras. I’m not sure exactly how these particular ones are set up, but the other major players in the space (Axis,Bosch,Panasonic) all have pretty surprising levels of local compute dedicated to “AI”, and leveraging external VMS platforms can exponentially increase capabilities. It’s pretty idiot proof once set up, as it’s aimed at desk jockies that monitor and report with minimal systems training.

Again, not this specific system but this stuff is far from sci-fi anymore.

Spray paint. Krylon makes “stained glass” paints. Something dark and thick like violet would be pretty effective.

I work in security engineering, including massive video systems. With any commercial unit made in the last 5 years and any software past entry level consumer grade this is a non-issue. Especially if someone is using descriptive visual search when pulling up video vs just scanning through every motion event.