I doubt it. That's a really hard problem. Ignoring the machine vision component, if someone on the side of the road waves at their friend, should cars going by

I doubt it. That's a really hard problem. Ignoring the machine vision component, if someone on the side of the road waves at their friend, should cars going by stop? Since there's no way to take control of these vehicles, I imagine they fall back to a service center with remote drivers when they come across the unexpected. Anything involving flashy lights should fall into this category.