Inconsiderate parking

The same family keep parking their cars opposite my driveway, more often it is this van.

I have spoken to the owner and his family on several occasions and politely asked them not to park directly opposite my driveway, I’ve explained the reason why (I can’t get my van out when they park directly opposite) but they tell me I don’t own the road and I can’t stop them parking there.

I’m usually met with an aggressive demeanour when I approach them, on one occasion I had to say to the wife that I wasn’t coming out for an argument I merely wanted to ask her to be more considerate. I explained that I work for the emergency services working shifts and cover on call, and recently couldn’t get my van out of the driveway when called into work because she had parked in such a way that I was unable to get out.