I mean standing point a laser at a camera for several minutes seems less discrete and efficient.

You can disable a camera in a few seconds. Pick the right paint with the right additives you may even damage the components.

Either way it’s a big cost to take it down and fix. I doubt they’re sending someone up on a ladder, but who knows. With the paint method someone could disable dozens in an hour.

You got me on the height though. Can’t best the laser there