If you read all the different news articles you'll find that he was at a neighbors house watching a football game. There's no indication he drove anywhere ~ just a pedestrian with a bit too much under his belt and he thought he was home and tried to get their attention to open the door.
The hazard here is obviously visiting with your neighbors, or watching a football game. Best not to do either. Just wait at home in the dark, guns drawn, waiting for a passing stranger to knock at the door. Right?