I haven't a clue, to be honest. I unfortunately believe that by the time the cops got there, the car would be gone, and/or someone in the family would be dead.
IT REALLY gets me most, when I am off work, it is obvious there is a car in the drive. There have been times I come home from work, only to have to sit there, with toddler in car, waiting for the jerk to come and move. I am not sure what the laws are regarding it, but I heard that it is against the law to park on the wrong side of the road, but no one does anything. Why would they do anything about someone parking in front of someone's drive?