An indication of “deed” useful?

Hi, yesterday I went back home from my vacation from Holland (about 900 km). The ride went so far without problems, except for an Audi driver. I was on the left lane of a three-lane highway and I have overtaken vehicles on the middle lane which were about 200-400m away from me and I stayed between the not shrugged, but for about 2 km on the left lane. My speed was 170-190 km/h. That was apparently too slow for the Audi driver. I drove up, then pulled onto the middle lane and was on eye level with my vehicle. Then he changed to the left lane again. When the traffic allowed it I drove over and wanted to let it pass. Then the Audi driver pulls on and stays at my height so that I can’t change to the left lane again, although about 150 m in front of me was already on my track again. Then I had to give up again correctly so that I drive again in front of the Audi r was able to switch to the left lane, otherwise I would have had to make an almost full braking from 180 to 120. After the car was on the middle lane I immediately switched to the middle lane again to let the Audi driver pass again. To the crowning conclusion he cut me still nicely. The whole thing recorded my camera and took about 30 seconds. Should I show the Audi driver? I was traveling with the whole family, so noc h another 4 witnesses who have observed everything. LG Dignitas