Police officers conducting an operation in Higham Ferrers to tackle vehicle crime were shocked when a woman didn’t take their advice to lock her car.
Sgt Paul Goosey, of Northamptonshire Police, said there had been 17 vehicles broken into in Rushden and Higham Ferrers during the last week in a sudden spate.
He added: “To tackle this, we’ve been both conducting patrols in key locations and at key times and getting the message across to people to check their cars are locked.
“We patrolled Higham Ferrers last night, spoke with residents explaining what we were doing and checked nearly 300 cars - 13 of which weren’t locked.
“We spoke with the owners of the majority who were glad it was the police that had found their car unlocked rather than a thief, and put cards on those whose owners we couldn’t locate.
“However, I was rather shocked when one resident thanked me but didn’t take my advice and left her car unlocked.”
Sgt Phil Holton added the operation would continue in Rushden and Higham Ferrers.
He added: “It’s also important to remove valuables, such as mobile phones, laptops and sat navs to further reduce temptation for criminals.”