Crazy people in Flint? Shouldn't race?!?!?

So here's my story if anyone wanted to read it. So a few months back when I was still cruising around in my old Beretta I was on my way to drop my buddy off at his house. We turned onto one of the local roads in Mt. Morris Township (Stanley Rd.) and started driving down that road to head into Genesee. By the time I pulled up to the intersection of Stanley and Dort Highway, there was an older guy driving a Ford Focus (I believe it was just the base model, somewhere between 2006-2009) and he was probably in his mid to late 20's I would have to say. He had his son in his car it looked like too, but that isn't irrelevant lol. Anyways, so we pull up to the light and I get into the right lane to go around him thinking he was either gonna take a left or accelerate slowly. So I give it a little gas to get up and go, and next thing I know, he's taking off and already a few lengths ahead of me. I smile and look at my buddy, thinking, "oh boy, let's show him what an older Chevy can do." Next thing I know, we are cruising down Stanley road, him going about 80 MPH and me right on his tail. We get up to the next light and he swerves over to the right a bit and then back to the left, me thinking he wants to continue racing of course. He grabs the road from the light and takes off again, getting past 60 MPH decently quick actually. This whole time my old beater Retta is holding right in there with him. We go further down the road and I try to get on the pedal and pass him but there's a car coming and no way did I have enough time to make the pass, so I creep in back behind him. This goes on for a bit, but I never made it past him unfortunately So we get the next light which is Genesee and Stanley, and this cuts off only allowing to take a right or left, so I smile and say to my buddy, "didn't beat him but he wasn't about to lose me either" or something like that anyways lol. When we get up to this light he swerves to the right, then back to the left, and then all the way over to the right. I think, what the hell is he doing? So once he's well over in the right lane, I pull up, cause I have to go left to go into town. I look over and he's looking down into his lap for something, and I think, "ok, whatever." So I turn and wait for the light to turn green to finish my trip to my buddies house. I looked over one more time after this to find out he was getting out of his car! He grabs my door handle, yanks my door open and leans over my friend, grabs my shirt and starts screaming at me, cussing up and down that he would kick my ass. I'm 18 lol, so he, I'm expecting would get in trouble for it. Anyways, what he did was totally illegal, but once again, I'm off topic haha. Turns out he wasn't racing?!?!? He thought I was being stupid in every way (which of course, racing is, but still fun) and wanted to kill me for it? He calls me a dumb shit and takes off right once the light turns green. I take a left and turn around to get his plate to report him to the police (for breaking and entering in my car, and assault to me and my friend) but he's long gone by then, assuming he just takes off all the time quickly with the car, and then expects people to "know" that that's just how he drives? Lol, yah friggin right. I'm 18 and stupid, and if your getting on that throttle on your car, your giving me a challenge to go against yah, whether I know I will lose or not (though many times I won't race if I know I'm gonna lose lol.) Btw, another reason I really didn't want to get his plate is because they would ask the reason he go into my car, and he would state we were racing or whatever, which of course, would also get me in trouble lol, but looking at what laws he broke, they probably would have let me up with just a warning in the end.