Two unsuspecting police officers who parked their patrol car over two bollards were caught unawares when they automatically raised - leaving their vehicle stranded.
Video footage shows the white Peugeot 308 hoisted into the air in Leeds city centre, with passersby finding the incident amusing.
Street salesman Saul Webster, 23, captured the moment on Friday, October 8 after hearing a 'loud bang' and a commotion near Kirkgate market.
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He said the officers were left baffled by the incident and walked off from the motor.
Mr Webster said: "I heard a loud bang but couldn't see anything because there was a police van in front of the car but when that moved, I saw the car.
"Everyone was shouting and screaming and them."
Mr Webster added that the officers had stopped to move some people on - but when they pulled up, the bollards lifted and the car was stuck.
He uploaded the video to Facebook where it has been shared almost 7,000 times, with a number of users mocking the unlucky cops.
Beth Richards quipped: “You can’t park there sir.”
Jo Bailey Taggart asked: “And who is gonna give him a ticket?”
Simon Butler added: "Good to see the Police are on top of things here in Leeds."
James Guilfoyle said: "Change the oil while it’s up there."
A West Yorkshire Police spokesperson said: "A police vehicle was lifted by an automatic bollard while on patrol in Kirkgate in Leeds city centre at about 2.30pm on Friday. The vehicle was recovered to be inspected for any damage."