Another guy on hacker news:

I’m surprised the flock cameras aren’t being disabled in a more subtle fashion.

All it takes is a tiny drone with a stick attached, and at the end of that stick is a tiny sponge soaked with tempera paint. Drone goes ‘boop’ on the camera lens, and the entire system is disabled until an expensive technician drives out with a ladder and cleans the lens at non-trivial expense.

A handful of enterprising activists could blind all the flock cameras in a region in a day or two, and without destroying them, which makes it less of an overtly criminal act.

Obviously not advocating this, just pointing out that flock is very vulnerable to this very simple attack from activists.