Oh that would be a neat challenge.

AI security guards (which I can only imagine look like Daleks from Dr Who) vs the public. How long before they just outright massacre a crowd?

Or, better yet, what happens when people start using drones as flying pipe bombs and the robots can’t even aim at it.

Ooooh or better yet, we can create devices that create a distraction for the AI robots.

Or, since I am pretty sure they’d be using some wireless connection of some sort, bring a signal jammer and just push em over.