This is a BS story; the delivery robot company turned over footage to LAPD in a case involving the attempted theft of one of their robots. This is no different from someone with a security camera at their home turning over footage of a burglar.
They even got a subpoena... for evidence that the victim was ready to give to them!
What more can you want?
A security camera at your home doesn't have wheels.
The point is that the company gave the footage to LAPD because it specifically concerned the theft of their property. Might they also give footage if an unrelated crime that happened in the vicinity of their robots? Perhaps, but that's not what happened here.