Yep this is the best idea so far by a mile.
Personally I think it's a bl**dy cheek to park on/in someone else's driveway without permission or block it but some people in this world as we all know are selfish, arrogant or just plain stupid. Always best to try to sort it out first though by talking to others before resulting to anything daft which might get you in trouble. I'd rather not have a record for criminal damage myself.