I'm gonna go out on a limb here and say I wonder if both cops were just burnt out and just don't give a fuck anymore. The tone of their voice wasn't very aggressive. They were even saying, "Put it on facebook". Their voice just said to me, "We're done with this bullshit". I'm sure they're well aware they can't say that shit in uniform.
When I was a teen I had a job as a waiter in an Italian restaurant with this boss, Vinny, who was just abusive all the time - No matter what you did it wasn't good enough. He was snarky. He was also the owner's kid so you couldn't say or do shit to him. After like 3 years at that place, it was 9am on a Sunday. I was cutting bread in preparation for that day. I was exhausted from working a double on Saturday. Vinny comes walking in the kitchen and says to me, "You're cutting bread? Good, it's about time you do something useful". I just put the knife down, looked at him with my eyes half closed from exhaustion and just said, "You wanna see me do something useful? I quit. I'm going home". And I took my apron off and just walked past him and out the kitchen door and went home. Vinny didn't even respond, he just stood there with his mouth open staring at me as I walked past him. When I heard the cop say, "Trump 2020...put it on facebook" I had an instant flashback to that moment. His voice reminded me of that moment, when you're just so tired of the abuse and the bullshit and you're not allowed to fight back and you just don't give a shit anymore. You're not even angry - you just don't give a shit.