He said the woman - who won't face any charges - was a "bit embarrassed" but shrugged it off, and the man whose auto was stolen "had a good chuckle".
When the woman left the store, instead of returning to the Nissan, she entered a black Infiniti QX50 that was parked in the store's lot and took off.
Since the Infiniti owner had reported his auto stolen, the police were able to track him down and return the vehicle.
According to Constable Tommy MacKay, who was the one called to arrest the thief, once shopping was done, she simply went out into the parking lot, "saw a shiny black vehicle, hopped in it and drove away".
"She picked up a few groceries and some other items and when she returns to the parking lot, she enters a black vehicle, and proceeds about her day", MacRae said.
Police say both cars used fobs, which means they don't require a key to start the auto and it turned out the owner of the stolen Infiniti had left his key fob inside the vehicle. She then drove to a nearby Walmart to do a spot of shopping, which is when she accidentally switched cars, leaving the rental and stealing someone else's ride.
"Once inside, the woman spoke to the manager and commented about how unkept the inside of the vehicle was and the fact that there was a set of golf clubs in it as well", reads a Facebook post from the Cornwall police explaining the mixup. She informed the manager that she wasn't entirely happy with the auto. "The woman was not impressed and handed over the keys".
At the end of the two weeks, the woman returned the vehicle back to the rental company, but was met with confused faces. For two weeks, this woman drove around in another person's vehicle. "You never know who might take it", police noted, according to MSN report.
All was revealed when she finally returned the black Infiniti auto she had been driving, to a rental vehicle company, whereupon she was told it was the wrong vehicle and not the Nissan Sentra she had originally rented.
Back-tracking through her trips, he asked her to drive with him to the Wal-Mart-where her actual-rental black Nissan Sentra still Saturday Putting together the pieces in his head and remembering his other distraught-over-a-recently-stolen-Infiniti customer, the manager made a call to police. They found the stolen Infiniti in their system and were able to sort out what had happened.