Think this through, please. Municipal police work is not "national security" level, but it still requires discretion. Leaking activity information to adversaries on the ground would be detrimental to their operations. At the very least, police run into emergencies, intimate partner issues, lots of violence, and generally see all the bad stuff. If someone like me were looking over their shoulder, that would be profoundly unjust to victims and a betrayal of public trust in the discretion and privacy that police offer to us on a regular basis. I have no reason. You've got no reason. Nearly nobody has any reason, except champing at the bit to catch them out at some transgression, so they can post it to social media and foment outrage and rebellion.
I don't want to see through their eyes nor hear through their ears. I believe that this propensity to DV and other crime is precisely because cops and their families are legitimately, profoundly, traumatized by the hazards of vocation, and when everyone's mental health is fragile, who's going to bear the brunt of the trauma, and how are they going to cope with that in a reasonable, even superhuman fashion?
It is not an uncommon tactic to lure or bait police (and/or Fire, EMT, Paramedics) into traps or mere distractions, so that some organized group can carry out something much worse without the heat breathing down their necks. Now all the local gangs are "tracking cops" and they know how effective those moves are. They all have heads-up just before the cops arrive to bust them. This is how you want to "track cops" constantly? Why have protest groups become so small and far-flung in recent years? Why aren't they turning up en masse in a single location to march and picket? Because a distributed protest also distributes first-responders, and dilutes response times and strengths. And "tracking the cops" becomes easier.
They are mostly not secret agents. They are not slipping through the streets under cloaks of invisibility or cones of silence. Even unmarked cars are fairly noticeable if you're experienced. The insignia, the lights and sirens, the uniforms are meant to get noticed and stand out. But are you going to "track cops" right into their precinct offices and cars? Their radio channels and comms were not always encrypted or private, but eventually they had the tech, and they had it up-to-here with all the prying ears and busybodies trying to second-guess them.
Police just sitting in their squad car looking at a computer display is not for public consumption. Police inventory of weapons and ammunition, and tallying of shots fired, and who fired them when: that is not public information. Police offering a towel or a garment to a nude woman who's just been raped: why do you want to "track cops", again?