M0nica
Ladyleftfieldlover You are assuming that the owner of the car is a reasonable nice person who will apologise and not do it again.
But if he is parking across her dropped kerb drive. It is clear it is a drive, that anything parked across it will stop the house owner accessing their home by car. It follows that anyone parking like that is someone who does not give a tinker's cuss about other people and their convenience.
I would say that anyone knocking on this gentleman's door asking him to move his car and please do not park there again can have reasonable fears that the response will not friendly and could be abusive and could trigger a feud between that household and you, which would be very unpleasant.
I agree, I would just knock on the door and see if a pleasant approach would work - and deal robustly with the gentleman if it gets nasty, but not everybody can do that, especially a woman on her own.
She’s not on her own! She has a husband.

