<human>: Condense the text into a few key points

This morning I was heading to campus for a final. Right when I entered onto the freeway, I changed to the center lane. While switching over, some douche bag in the fast lane swerved out of his lane (where he had been closely tailgating another car) into mine, cutting me off. 

It was rude, but I simply switched into the fast lane and let it go. I eventually passed him up, and looked over to see that he was about my age (twenties), and driving with his girlfriend in the car. I let it go...

I continued in the fast lane until my exit approached. I tried to switch out of the lane, only to find that the aforementioned douche was boxing me in by driving a tiny bit behind me in the neighboring lane. I turned on my blinker, I sped up to try to get ahead of him, but he boxed me in between himself and the car in front of me. Eventually, I just slowed down to let him pass. As he drove by, he looked at me smugly. At this point, I glared and mouthed, "What the fuck."

As I switched over to the exiting lane, he mimicked me, switching in front of me and cutting me off in whatever lane I was in. As I reached my exit, he threw something small out of his window and it bounced off my windshield. I think he flipped me off. Then he sped off.

In my anger, I recited his license plate like a mantra, ingraining it into my brain.. Is there anything I can do that would be both hilarious to me and embarrassing/insulting to him, while knowing only his license plate number?

It's 4ZYJ560, by the way.
<bot>: some dickhead was being a total douche on the freeway this morning and I want to give him his just desserts, but I only know his license plate number.