I realise this reply is a little late, but wanted to share the notice was cancelled after I appealed with POPLA!
I gave evidence on serveral front, including the Airport Bylaws, lack of signage both in and around the McDonalds requiring validation, and a few other bits. Not sure is any of the other stuff helped, but in any case thank you for you help in this thread and hopefully anyone else having to deal with this location can have the same result =]