Two old ladies

It was a small town and the patrol-man was making his evening rounds. As he was checking a used car lot, he came upon two little old ladies sitting in a used car. He stopped and asked them if they were stealing the car.

They said, "Heavens no, we bought it."

He said, "Then why don't you drive it away?"

Each of the women said, "Well, we can't drive."

The officer momentarily shook his head and then he asked, "So why did you buy it?"

They answered,

Spoiler:

"We were told if we bought a car here we'd get screwed, so we're just waiting."