Why do you think they were so annoyed at all the cameras?
I remember one quite well, in which the police were raiding some suburban Texas home and decided to steal the guns and cocaine they found in it.
The kicker: They forgot to turn off their body cams while doing and discussing it.
You've reversed cause and effect. Cop shows don't base their plots on what is real, they base them on what people will believe is plausible.
Why do you think they were so annoyed at all the cameras?