A Danbury man has been arrested for hitting three vehicles, including a police cruiser, with his tractor trailer. 29-year old Christopher Hillman was travelling in the middle lane of Interstate 684 on Friday morning when he struck a car in front of him. Hillman continued to the right shoulder, striking a New York State Police patrol car. He then continued between the guide rail and the passenger side of the police cruiser, striking an SUV. Hillman was charged for operating while impaired by drugs, reckless endangerment, possession of a controlled substance and with several traffic violations. He was arraigned and ordered held on bond for a court appearance on Wednesday.