During the past three weeks, police have received reports of seven similar incidents across the city.
The carparks targeted include the Range on Water lane, Southernhay east, Waitrose and Sainsburys on Alphington Road.
A smartly dressed man is targeting lone older women and men, pretending he needs change for the ticket machine.
So far, around one-thousand pounds has been stolen.
Tank shell shut downs recycling centre
No one was hurt
Exeter's Royal Clarence hotel to be restored
'Progress is moving fast'
Man sought after alleged Plymouth assualt
Police would like to identify man
Cornwall ‘shafted’ by D&C Police, says leading councillor
Cllr Andrew Mitchell made his feelings known
Torbay's bigger buses outgrow streets
'Operating buses of this size on those roads would create safety and reliability issues'
Anger at plans for 700 homes in Exmouth
They're unhappy about proximity to heath
