Police say 45-year-old Keith Hinds stole a Chinese food delivery driver's car.
The drniver left it running while he went into a middle school to drop off an order.
According to police, the suspect went on to deliver several orders to customers so he could pocket the cash.
Hinds was arrested while making a delivery.
"You can't leave your car running in any neighborhood because anybody who has an opportunity is gonna take advantage of it," Sgt. Joseph Creaco, with the West Hartford Police Department, said.
Hinds faces larceny and drug possession charges.