Complete waste of time. Obnoxious, genuine low-life individuals know when they're being obnoxious. And, they don't care. It's fun for them. This clearly isn't some reasonable individual who doesn't realize what he's doing every morning. Used to have a co-worker who constantly complained that politicians didn't give a crap about Joe & Jane Blow. The average hard-working public who got up early everyday to be packed like sardines onto buses and subway trains. Just trying to get by. Trying to eke out a living. Coming home exhausted. Again, packed tight like sardines. Trapped in tiny studio apartments. Hopefully not in neighborhoods that police refused to go to.
Before he got fired. He started bragging to everyone how much "FUN" it was to ride his Harley incredibly early through run-down neighborhoods. (The ones populated by Joe & Jane Blow.) Right around 2am. He'd rev. the engine, and open her up! Setting off every single car alarm in the neighborhood, waking everyone up; and thus contributing to their misery. Wasn't a one-time thing either. Did it on a regular basis. No one at work decided to waste their breath by talking to him about his most fun hobby. Well, fun for him. Everyone knew it would be a total waste of time trying to do so. And, this was a co-worker. Not some random stranger off the street.
That's exactly it. Those types get off on annoying other people. My own version of this was when I was shoveling snow outside one winter. There's a car parked right in front of my place which the owner apparently removed the snow from before I went outside to shovel. While I'm shoveling, he starts the car. I'm thinking at first, OK, he's using it now. Then it's idling for a while. OK, maybe he's warming it up. After 10 minutes of continuous idling where I was getting gassed out I politely asked him to please turn the car off if he doesn't intend to use it. I figure by now he either warmed it up, or had it running long enough to make sure it's working. Nope, the guy just looks at me like "how dare you ask me to stop". So a few minutes later I just stopped shoveling and went inside. I couldn't take the fumes any more. Keep in mind I have zero history with this person. In fact, this was the first time I even recall seeing him. Maybe he was visiting someone on the block. Anyway, he had the car idling for over an hour. It's stuff like this that makes me a big fan of electric cars.
A few hours later I finished shoveling. Now here's where it gets good. I came out that night at 3AM, and put back all the snow around his car which he removed earlier. I even put a little extra of the snow from my property there for good measure. The temps dropped that night, so it's likely some of this snow froze hard. Since few people are up at 3AM, I figured zero chance he saw me. I wanted to see his reaction when he went back to his car, but honestly I had better things to do than stare out the window all day. He didn't put two and two together or he might have rung my bell enraged at what I had done. In any case, since he didn't see it (I'm sure he would have come out to stop me while I was shoveling if he did), he had no proof or knowledge who did it. I heard some noise outside a day later. It was him chipping away what was now ice trying to get his car out. He didn't look too happy. The car was stuck there for the next week. After that, I never saw it, or him, again.
It's remotely possible he thought the snow plows did it. I'm on the right side of the street. When the plows come down, all the snow ends up on my side. Best to not shovel your car out until after the plows pass, or you'll likely have to do it again.
Moral of the story, be considerate of people or else.
My mother had an even better view of people like this and your coworker. When they act like jerks, hit them over the head. They still may not understand why they shouldn't act like jerks, but they'll know it hurts when they do (and stop).