Not really, no. It's just not that dangerous. We imagine it must be dangerous, and so do cops themselves. But you're a lot more likely to be killed as a garbage collector or airline pilot, or a construction worker, or plenty of other jobs.
It's like with the "war on terror". The fear of danger is much more powerful than the danger itself. And like with terrorism, the fear is actively promoted for political reasons.
They do what everyone does, what has to be done for policing to be viable.
That seems like an argument against the department as a whole, not a justification for an individual's abuse.
Most of the people they deal with are lowlifes, lyres, cheaters.
Most of the people they deal with are ordinary innocent civilians whom they assume are "lowlifes" because they have been trained and conditioned to.
That said, this following cops around only plays to the problem paradigm. It's harassment, like what paparazzi do. It's belligerent. Maybe it's valuable as a protest, but it isn't as solution.
It is belligerent, and it is harassment, and it is protest. And that's the point. People with power do not voluntarily stop abusing it. They continue until met with resistance - until they are forced to stop.
Unfortunately it's effectively suicide to physically force the cops to stop, but we should do everything we can short of that to stand up against them. Standing up against the cops sets an example for others that we don't need to fear them, that they don't deserve respect and deference, and that we can do something directly to stop their abuse.