history: I was driving on the freeway the other day and there was a car ahead of me that was swerving bad. This really bugs me but I had no where to go on the road other then to slow down and fall back to get away from that car. Luckily after several minutes of this person swerving in and out of their lane a state trooper pulled them over. 
current: I was driving on the freeway the other day and there was a car ahead of me that was swerving bad. This really bugs me but I had no where to go on the road other then to slow down and fall back to get away from that car.
next: According to my knowledge and understanding, I believe that you did something really prudent