A simple case of bullying, Mac. If you have no lawyer of your own, then perhaps the Citizen's Advice Bureau. I believe they give a certain amount of free advice.
If the Land Registry entries are clear, then "pedestrian access only" means just that.
Even as a non-lawyer, I can see no way that a Court could support an injunction against you. Issuing an injunction requires a lot more than simply his will. It's a bluff, even if he is misguided enough to think otherwise.



