Visible crew/equipment: After burning the car, when Dave takes the trash out there is a camera operator at the end of his driveway. (01:11:00)
Visible crew/equipment: When Denzel is fighting the man in the back seat of his car, they pass a silver Prius, which he hits. The camera tracks alongside. You can see the camera operator. It's clear enough you can make out that he is wearing a motorcycle helmet and has gloves on. (01:09:30)
Visible crew/equipment: When the bad guys shoot the state trooper during the storm, there is a shot of the trooper falling. A crewmember creeps into frame quickly before the shot cuts.
Answer: It is never mentioned, but it stands to reason that eventually they did find out. York's crimes most certainly would have been made public, he is solely responsible for several murders including the murder of a police officer at the beach. There would be very little reason for the government to cover up his crimes since he was acting as a rogue agent.
BaconIsMyBFF