You did the right thing. Just film them. Don't engage with them. They can't deal with being out in the big wide world and this is their way of trying to deal with it: a temper tantrum. Still, they wanted attention and now they have it..be great if you had some video footage but if not no worries..no doubt someone else will get some because drivers like that, they seldom evolve.
To be honest I'm not sure it's illegal - as long as the owner's car isn't on their drive and as long as the parked vehicle isn't causing an obstruction to passing traffic. However, it does appear to be highly inconsiderate.. I mean, if someone kept doing that then their car could so easily be damaged, know what I'm saying? What with so many bloody idiots about these days, a car sticking out like that could easily get swiped..
Helmet boy