That doesn't make anything better. No one deserves points for checking a phone briefly while a vehicle is stopped at a red light. In the long run, problems like Mikey sort themselves out - Darwin at work.
If no one deserves points for checking a phone briefly while a vehicle is stopped at a red light, then either the police can decide not to act on video footage showing someone doing this, or the law should be changed.
Sure, the law should be changed, and I'm sure the police frequently do decide to ignore it. But then you have this dipshit vigilante endangering himself, causing tension and handing them a free win (i.e. free money), so of course they take it.
Two things can be true: checking a phone while stopped hurts nobody and should not be illegal. Driving the wrong way in an intersection and nearly hitting a cyclist is dangerous and this activity should be curbed.
If he was only harassing people who were actually a danger, there wouldn't be much to complain about. But he isn't, he'll harass whoever he can for clicks and ego.