While driving on the highway yesterday, in the rai...

While driving on the highway yesterday, in the rain, one of your service vehicles that was behind me in traffic decided to use a merging lane as their own personal passing lane, swerve in front of me causing me to slam on my breaks, and get literally no where in the process. Here's the thing, if they are going to have such little regard for my safety while driving, I don't want them in my home or business. How are they going to treat me then? The truck was numbered, which I have. We were in traffic. They weren't going to get any where with their idiotic stunt to pass ONE car.