In one instance I was driving on the freeway in some traffic in the right lane and suddenly a huge 18 wheeler truck behind me starts honking the horn, I had no

In one instance I was driving on the freeway in some traffic in the right lane and suddenly a huge 18 wheeler truck behind me starts honking the horn, I had no idea why. I creep up as much as I could as there was another car in front of me. The truck driver proceeds to rear end me. The first time I thought it was an accident, then he keeps doing it over and over again until I am finally in the shoulder. When I'm out of his way he starts driving away, I follow him to get his tag # and call the police. He did some pretty significant damage to my car. When they arrive to file the report they tell me there's 'nothing they can do' because the plates were out of state. They said they would file the report anyway. About a year later I shop around for car insurance and discover that the police report somehow indicated that the collision was my fault. Luckily the insurance company took a look at the damage and saw I was rear ended and concluded it probably was not my fault and removed it from my record.