This webpage run by the California Highway Patrol has realtime information available for traffic incidents they have responded to. Most of what I've seen so far have been traffic stops, disabled vehicles, traffic hazards, etc. The type of stuff you'd expect. At the time of posting, there were a few funny things occurring in the Bay Area. Something about a bunch of chickens that escaped from a truck and were running around the road.

Map views are still under construction.

This is a very different type of police surveillance. Not the type we are used to. Its a nice change, watching them. So much for police blotters and radio scanners. This is realtime and less work.