Went to Wal Mart tonight and saw the immediate aftermath of a car wreck - there were still no cops on the scene. By the time we left, however, we had to turn around and go back towards the store because the intersection we'd normally turn at was totally covered in cops and firetrucks and ambulances. And somehow, we ended up on the way to Atlanta. It turns out that 475 north just goes into 75 north. No way to get back to going south.
Next time there's an accident on the way to WalMart, we'll just turn around and go straight home.