James Byrne was in a Nissan Qashqai which was seen to reverse into a Ford Mondeo.
The case was before magistrates in Peterborough on Monday and Byrne was not present, as scheduled.
Prosecutor Graham Allen said the incident on May 14 was captured on CCTV at Asda in North End, Wisbech and showed Byrne pulling forward after the impact, getting out and going to look at the Mondeo.
He added: “At the time [the victim] was working within the store.
“His partner heard the details of his car called over the PA system.”
When they went to check the Mondeo they saw the nearside wheel arch had been pushed inward. Mr Allen said the vehicles had collided “with some considerable force”.
Byrne, of Church Lane, Newton-in-the-Isle, Wisbech, later told police he did not see any damage and there was no one in the car.
The offences of driving without due care and attention, failing to stop after an accident and failing to report it were found proved in the defendant’s absence.
The court was told he had a clean driving licence.
The case was adjourned for sentencing on December 12.