great little car

Hello, We are Traffic Controller and we rented the car for the night on Orpington St. We were practically across the street from where we picked up the car. We spent the night in the car and when I went to start the car in the morning, it would not start at all. The battery died. We had to push the car to the car return point. We couldn't close the window completely because the car wouldn't start because of the battery. We hardly even drove the car. We only used it to spend the night in. I apologize to the owner of the car and ask him to close the windows of the car. The car was turned off the whole night, we didn't use the air conditioning. When we started the car, it was already making a strange noise. It was probably the battery. I apologize to the owner for what happened, but we did the best we could. I recorded videos and took pictures to prove it.