A few years ago my BIL bought a GoPro for his bike. He was riding in the Michigan Mountain Mayhem when he heard a truck coming up behind him. He was going up a large hill so he was going slow. When the truck passed him, the guy stopped in front of him and threw an open container of beer at him. The guy missed him. When the guy was stopped my BIL had to go by him. Then the guy got back in his truck and when he passed my Bil again, and crossed over the double yellow line. My Bil stopped and called the police. They weren’t very interested in coming out until my Bil told them he had video of the whole incident. He had them meet him at the end of the race and he gave them a copy of the video. The police called him about a week later and said the guy was really surprised that they found him. They ended up charging him with assault, open intoxicant, passing on a double yellow line, and no proof of insurance.