What laws do you suppose they have to follow, exactly?
Cops need a warrant to track your phone, check which tower it connected to or tail your car for extended period of time.
Cops do not need a warrant to use Flock system. They have an app where they can simply put your license plate and they will get a path showing every move of your car as tracked by the flock cameras, and there are a looot of them (e.g. near San Jose: https://deflock.me/map#map=16/37.335318/-121.881316). And thats without the integration of ring.
This essentially allows them to GPS tag anyone, with no warrant, while "following the laws". So no, it's not all the same.