Highway driver

Just was driving home on the highway from work in Fishers. Driver with Michigan plates basically cuts me off as he’s merging onto the highway merge area. I had left a small amount of room for me and the driver in front of me as you should. He cuts in this space and starts swerving around and basically brake checking me because he’s tailgating the other driver in front of him. We merge back onto the highway and I get away from him and he starts speeding up to cut me off and he’s swerving like jerking his steering wheel the whole time, so I am honestly terrified for my life.

If y’all see a silver sedan on the highway with grey and yellow Michigan plates, please be careful and call the police if you see them swerving or speeding again.
The guy was white appearing and had a sleeve on his left arm with dark hair