content: This is pretty much what I came here to say. The guy in the truck was clearly blocking him on purpose. No excuse for what the guy in the Camaro did but people who think it is their job to police other drivers and teach them a lesson aren't any better. I've seen it happen a number of times, even in person. The person they're trying to pace or teach a lesson to (or whatever it is they're doing) isn't going to learn a valuable lesson from you or be put in his place. He's just going to attempt a more dangerous lane change or passing attempt and the whole thing makes an accident more likely. It's better to let these people pass and let the cops worry about them instead of acting like it is your job to handle them.