Person aggressively started tailgating on 287 North and then sped away giving the finger. Later, when trying to get off into right exit lane, person recognized I was trying to get off and pulled up directly next to me moving the same speed as me so that I could not get into lane. I tried to slow down as much as I could, and he would follow suit and then I'd speed up to try to get over and he'd do the same, while laughing. When I finally was able to get over (behind him) he started doing these zig zag movements on exit ramp until eventually speeding away and tailgating/ harassing another driver. Dangerous person who should not have a license, beware.