Letting the tyres down is also a cure because there's absolutely sod-all they can do about it, even if they see you doing it. There could be a case of 'theft' - of the air in the tyres but since you haven't 'dishonestly appropriated' it, it's doomed to failure.......... What really pees house holders off is the actual wording, that of obstructing the free passage of the highway and not obstructing the free passage to your driveway.