I don't know about the rules there, but here the law clearly says that parking near a driveway to a property or house has to be done in a manner that driving to and from said property doesn't significantly become more difficult. Basically that means that the bumper shouldn't exceed the lineage of the driveway, allowing a 90 degrees turn. Also there should be left enough space for a bigger vehicle like a firetruck to drive to said driveway.
So is the guy blocking your driveway, thus endangering your and yours life in case of emergency or only causing you to turn the steering wheel more than you'd like? In the former case it's a police issue, in the latter, well...