After reading his replies. I would say it's purely BS. Tired? Tired, exhausted are not excuses for him to be a road bully.
Imagine if he jam brakes and cars behind that tried to avoid/stop which lead to another accident.

He doesn't sound apologetic, i mean, all those BS he typed, anyone could do that
If the case is not viral out, you think he'd give a fk about this or his so called reputation being tarnished?
From the moment he jam brake/reverse, he would've thought of the consequences, and now KARMA bites.

TS, you're not preaching about peace, you're just TIMID.