If moving the car be aware of Fagan v Commissioner of Police for the Metropolis:
On August 31, 1967, the appellant was reversing a motor car in Fortunegate Road, London, N.W.10, when police Constable Morris directed him to drive the car forwards to the kerbside and standing in front of the car pointed out a suitable place in which to park. At first the appellant stopped the car too far from the kerb for the officer's liking. Morris asked him to park closer and indicated a precise spot. The appellant drove forward towards him and stopped it with the offside wheel on Morris's left foot. “Get off, you are on my foot,” said the officer. “**** you, you can wait,” said the appellant. The engine of the car stopped running. Morris repeated several times “Get off my foot.” The appellant said reluctantly “Okay man, okay,” and then slowly turned on the ignition of the vehicle and reversed it off the officer's foot.
The justices at quarter sessions on those facts were left in doubt as to whether the mounting of the wheel on to the officer's foot was deliberate or accidental. They were satisfied, however, beyond all reasonable doubt that the appellant “knowingly, provocatively and unnecessarily allowed the wheel to remain on the foot after the officer said ‘Get off, you are on my foot’.” They found that on those facts an assault.