When I went to counter-accident driving courses, I watched a lady knocking down all the cones that had to be circumnavigated. Thus e. Driving directly behind her car on the highway was almost pointless. One day after one of the exercises, I watched her behavior on the road. He was aggressively hanging between the cars. Later came to understand why there is such a strange discrepancy, she did not feel the dimensions of the car at all.
Simply the cones (unlike other cars) do not slow down.