 Progressive Casualty Insurance Company and Affiliates. Optional heavy truck roadside assistance provided by third party and subject to policy terms and conditions. Not available in all states. There are few non-profits in the trucking industry and even fewer that tangibly make a difference in the lives of professional drivers. Since 2008, nearly 4,000 over-the-road semi-truck drivers have turned to the St. Christopher Truckers Relief Fund when a medical issue took them off the road.