I'm all for reporting crimes, but don't try to enforce the law yourself.
Example -
https://www.carthrottle.com/post/watch-two-idiot-drivers-block-half-a-motorway-for-no-damn-reason/
Self appointed lane / merge in turn enforcers are the bane of my commute!
That was absolutely blood pressure through the roof stuff, right there.
I consider myself to be of slightly above average intelligence, and I couldn’t see any legal way out of that, the jerk driving the Kia was never going to let anyone past without risking a scrape to their bodywork, his dumb disciple in the Ford likewise.
The only legal way that came to mind, was to inform the police, but stress that they would have to approach from the other direction, and then maybe close that side, while they crossed to sort out dumbo.
But think how long that would have taken.
The best thing that could have happened, for the 1 or 2 guys who had unsuccessfully tried to reason with the Kia driver would maybe have been that once it became apparent that he was so intransigent, someone really incensed, 4 or 5 cars back, would come up, drag him out, put him down, then drive his car on to the central reservation, force his keys down his throat, or drop them down a drain, and leave him there.
When the police asked for witnesses, everyone develop myopia, and pray that no camera picked the incident up.
Sure it’s illegal, sure it should NEVER come to that, but how DO you deal with a berk like that?