A driver travelling at 111mph (179kmh) with three children in the back of the vehicle told police he was in a hurry to get to the coast for a holiday.
The man, who was driving a Range Rover, was stopped on the A47 at Terrington St John, Norfolk, on Friday at about 21:05 BST.
He told officers from Norfolk and Suffolk Roads and Armed Policing Team he was heading to King's Lynn for a caravanning holiday.
Norfolk Police said he was issued with a traffic offence report while a decision was made on how to progress with the offence.
Speeding can result in a court hearing and a driving disqualification, the force added.