I went through pseudo law enforcement training while I was in the navy. Guess that makes me a cop now.
Nah, you are at best a citizen, but more threatening than most citizens to a cop who knows that training since you could use your knowledge against them, and therefore a potential perp.
The turn to 'Tactical policing' in the past ten years or so is pretty troubling, you see it on cop shows where it is looked at as normal and accepted to grind some disorderly college punk or mouthy old dude to the pavement with a knee on the neck, or no-knock entries gunning down the surprised home occupant who has no idea that the home invaders he tried to shoot are cops who had the wrong house (Which you don't see, just like you don't see all the car chases that fail in places that
don't have dawn-to-dusk overlapping helicopter news coverage).
People think cops and military have a lot in common, in actuality they don't get along very well at all. An awful lot of cops don't want anyone else to have the means to use deadly force but themselves and for everyone to obey them without question immediately, while military people (Especially ground combat types) tend to be less than comfortable without a weapon available somewhere and do not like taking orders from people they don't know and trust.