Eileen Bishop said she was "half asleep" when the scooter charged off
An 87-year-old Cornish woman was rescued by police five miles from home when her mobility scooter sped off out of control.
Eileen Bishop, from Perranporth, and her husband Anthony were on their way to church when, he said, she "disappeared off the radar".
Officers later found her heading along the A3075 towards Newquay.
A police community support officer (PCSO) rode the scooter back and said it appeared to be working correctly.
Mr Bishop said the incident began when he and his wife set off for St Michael's church.
He said the scooter, which "hadn't been going that well", was set to three-quarters speed.
"Suddenly she passed me at full tilt," Mr Bishop said.
"I shouted after her but she is a bit deaf. I couldn't chase her as I've had a triple heart bypass.
"She just disappeared off the radar."
Mr Bishop said he and a neighbour searched for his wife and then went to the police station to report her missing.
"I was just about in tears," he said.
Officers found Mrs Bishop after a motorist reported a mobility scooter "swerving" across the road near Pendown Cross, five miles away.
Mrs Bishop said she was not sure how she got separated from her husband.
"I just lost him. I was half asleep to tell you the truth," she explained.
It took PCSO Michael Ginnelly an hour to drive the scooter back to Perranporth.
"I think Mrs Bishop just gripped the controls and went too fast and held on for dear life," he told BBC News.
Officers eventually found 87-year-old Eileen Bishop five miles away