As he felt around, he eventually found the doors of the car. He tried three of them, and they were all locked. He surfaced for air after he found each door and called to a friend to find some rocks to break the windows.
Finally, he found that the driver's side door was unlocked and pulled on it until it opened. "I couldn't see anybody," Larry says. "I figure somebody's going to be sitting right here in the front seat and nobody's there."