When Billy Joe Bob takes TC's chopper, he puts on the pilot's headset. The name D. Jones is visible on the left ear piece. Presumably, that is the name of the actual pilot- not TC. This appears at the 41 minute mark.
When Billy Bob steals the Ferrari, he doesn't input the code but the car starts without a problem.
While in the police station with the two officers, Magnum phones Higgins, who tells Magnum that Billy Joe has stolen Magnum's Ferrari and escaped the estate. Magnum doesn't tell the officers about the Ferrari; only that Billy Joe is probably on his way to the villain's base. Yet one of the officers knows to suggest they "get out an APB on that red Ferrari".