This happened to me many years ago when I was in my early 30s. I accidentally pulled out at a junction, not enough to be dangerous, but probably should have waited. I put my hand up to the bloke I had pulled out in front of, (like oooops sorry
...)
But that was not enough. He was on my bumper, revving up his engine and virtually redlining, and nearly hit me several times. He was beep beep beeping his horn, and screaming out of the the window, 'YOU! BITCH! YOU FUCKING STOP!' He was in a rage.
I was so scared. No way was I stopping, I was afraid he would hit me, or pull out a knife.
There had been a recent spate of road rage attacks and I was terrified. I drove for about 3 miles, with him hounding me, and I drove into the police station car park. He pulled in too, pulled alongside me, and as I got out of the car he said 'you'll keep you fat cunt. I will fucking end you next time, and I can trace you by your registration plate, so I already know where you live. You're fucking dead.'
Completely irrational and ludicrous anger and rage from this man, aimed at a young woman. (He was about 40-45.) I had my DD in the car too in her car seat, only a few months old, and as he drove off I burst into tears. I was in bits.
I went and reported it to the police, and long story short, they checked their cctv, and his registration number was a fake, and you could only see him from the back. So he was never traced. Even now, I shudder when I think about it. I never told anyone. Not even DH. I don't know why. 
With the stories I am reading on here, it's no wonder so many women loathe men!