Sadly there are people everywhere, that as soon as a helicopter lands somewhere that might be of question decide that it is automatically illegal or wrong. It is not confined to the UK by a long stretch.
There is a bakery outside San Diego in the tiny town of Santa Ysabel where those in the rotary world land in the car park and can go in and get breakfast or whatever they desire.
We landed there once, just as a Sheriff was driving down the road. He raced in to the car park lights blazing and after we shut down approached us with hand on gun. We climbed out and he proceeded to give us the ninth degree and claimed that the owner of the property had written a letter to them asking them to cite anyone for trespass who landed at the bakery. He wrote down certificate numbers, N number and everything else he could think of.
Unluckily for him the guy I was flying with is rather well connected in the social circles and a quick phone call revealed that the Sheriff was apparently making up his own laws and that the land owner new nothing of the forementioned letter.
In fact he said he was more than happy for people to land there as it was good for business and he wanted everyone to enjoy his property and what there is there to offer.
Needless to say nothing more was ever heard about it.