The specific incident in question was a grand larceny case where two men tried (and failed) to steal a robot owned and operated by Serve Robotics, which ultimately wants to deploy “up to 2,000 robots” to deliver food for UberEats in Los Angeles. The suspects were arrested and convicted.
So it wasn't like some incidental crime that happened to be filmed by the robot, they were literally trying to steal the robot. I mean... of course the victims provided the police with the evidence they had to help catch and convict the people who tried to rob them? This is like a hit-and-run victim giving the police their dash cam footage.