Wow, your lucky...
It happened to me once; I was driving and I just moved my car in other lane in the freeway but, I assumed that man got mad at me for cut him off since he's very speeding up which I was only going 75 mph that freeway. Somehow, he caught up with me and started yelling at me with his hands, I was puzzled and saw him swearing at me and yelled at me with his expression face, I could tel that hes very anger with me so I was focus on the road and ingored him, but he kept move around my car with his car to making anything to cause me to getting in car accident, I told myself to be calm down calm down until he got behind up me and I decided to speed up to around 100 mph as I could but he did chase after me, I just continue speed up until I saw policeman and I pray for him to comup to me because I went 100 mph but policeman did chase after me for speed up but that man ran off so policeman pulled me over, i explained to him what happened in the note even I did give my time to write down that man's license plate and what kind car and etc like that, he thank me for that and I don't know what happened to that man when I told policeman. so Im safe... That is really scared me to death.