Should one display the ???

Hi people, last Friday on the highway on the way home from the holiday: three-lane highway, no speed limit. I drive on the left lane with approx. 160 kmh and about 80-100m distance to my front man. Suddenly comes from behind such a would-be and moves up to about 8-10m on my bumper. After about 200-300 m he tries to overtake me on the right which is not possible because of traffic on the middle lane. Overall he tries it 3 times. When I then brake then must ss, because my front man brakes, he passes me to the right and squeezes so close in front of me on the left track, that I have to make a full braking and even to the left in the direction of the guardrail. Afterwards this type with well maintained 140 kmh on the left track and prevents me and all subsequent drivers from overtaking (middle track was free) I have already experienced a lot and have always remained calm, but that definitely goes too far for me. What do you think about it, s should I report the guy or does that bring nothing but running ?? greeting mivork