I believe the U.S. Military standards for behavior and conduct are more stringent than local police departments. Obviously, there are exceptions but it's rare to find a LEO who isn't an authoritarian asshole. Yep, they have a tough job but when they are still authoritarian assholes in their own offices or in a place where weapons are not allowed (except on the LEOs hip), serving and protecting can be accomplished without all the assholery.
I had a job where I had to interact with LEOs quite often. I lost all respect for the LEO profession very quickly and basically gave up trying to be friendly and moving towards a strictly business demeanor after one year. Most eventually became more aggressive and sarcastic for the next year I was on the job. At this point any time I deal with LEOs, I use a voice recording app on my phone as a safeguard ... likely a useless safeguard but at least I have evidence of their behavior that I can turn into a written transcript.