My boyfriend and I were heading to my friend's house around 10pm after a formal event and my friend said that she had to stop at her boyfriend's house with him to get him cold medicine and then they'd be on their way to her house. My boyfriend was driving the car and this black truck was the only other vehicle on the road with us and it was swerving in front of us and into the other lane. We both decided that we should stay far enough behind the truck incase he did anything dangerous. When we turned onto a road, the truck hit the brakes IMMEDIATELY which forced us to come to a very fast stop. The truck slowly turned right into a parking lot but then decided to cut out in front of us again which caused us to stop again. The truck sat 10 feet from us. It just sat there almost as if it was challenging us to go around it. My boyfriend and I sat in silence just watching and waiting for the worst to happen. Suddenly, and I mean suddenly, the truck reversed so fast and luckily so did my boyfriend or else the front of his car would've been totaled because that's how fast the truck reversed. I was shaking and panicking and so was my boyfriend. The truck slowly pulled into the parking lot again and we sped up the street, turned onto my friend's street and sat at the top of her cul de sac with the car lights off. Where she lives there isn't great cell reception and none of our friends were answering. A few minutes later, we watch in horror as the truck slowly drives up the road with his lights off. Luckily he didn't turn onto the cul de sac. Then he drove back down the street. A few minutes later he returned. We thought we should've got his license plate but in the moment we were so shocked we couldn't think straight. Was this guy messing with us or what? Do we contact the police?