To those that are asking, I did go back to the police with a formal complaint and the will to prosecute the attacker. Everything is in order and I have ID'd the attacker and now it's just a matter of waiting for the results or the call from the PD.

Just for everyone to know. I was NOT trying to race him, and I know the video makes it seem so. But I just wanted to pass him since I noticed he kept staying right next to me. I accelerated a bit to pass him but slowed down when I noticed I was approaching speed limit as well the a yellow light. The guy, for some odd reason, cut right behind me when I passed him, cutting off my friend and tailing me very closely (according to my friend). I didn't notice him behind me since he did it so abruptly, I assume he either got pissed that he thought I was trying to race him? Or that I purposely brake checked him? I was about to tell him that my intention wasn't was to race him but he got all macho on me.

And for those that are wondering. YES I took his little slap to the head. No harm done. I'm not an aggressive guy, I assumed this was another typical road rage, let the guy do his little act and be on with it. Of course I wanted to punch him but that would've made matters worse with all the people watching. If he had tried to take another swing at me then I would've gotten off to defend myself, but 1 little slap was no big deal.