Son took mum's car and drove around Derby - before it ran out of petrol TV Traffic Cops saw him pushing it up Mercian Way Two of these officers from TV's Traffic Cops programme caught him (Image: Traffic Cops) Never miss another Derbyshire story by signing up to our free email updatesInvalid EmailSomething went wrong, please try again later. Subscribe When you subscribe we will use the information you provide to send you these newsletters. Your information will be used in accordance with ourPrivacy Notice. Thank you for subscribingWe have more newslettersShow meSee ourprivacy notice An uninsured, unlicensed driver from Derby took his mum's car without her permission and went on a joyride until it ran out of petrol.