Providing proof of commercial insurance

Dump truck blew out (inner) back tire and struck my left front bumper. Florida Highway Patrol came and filled out incident report and provided myself and trucker with copy. I could not locate phone number for trucking companies insurance on the internet and subsequently called the driver for additional information. I was told by trucking firm that they would not provide me with contact info.since they feel the incident was not their fault. I did not know that the trucking firm could be so blatant as to stonewall and not allow me any access to any insurance info. I think it is somewhat ironic that the trucking company has a contract with the state of Flor. to do repair work and yet they can't provide proof of ins. or any other information related to ins. provider for an accident that happened on a state highway that company probably has a state contract to do the work. Any advice from here? I do have Flor. H. P. incident report just not valid phone # that works. Any requirements