I agree with much that has been said. So other extras things that I would consider. Writing clearly and concisely what happened and sending it recorded delivery to the hotel, so that they cannot say that they have not received your letter. Take photos from various angles of the parking signs , showing how badly they are placed etc. Then if there is no effort made to change things or cancel the parking charge despite your eating there, I would then go more for publicity in every way possible. Write to your local paper, contact your local radio station, both to tell your story, and to warn others of the deliberately small and unlit parking signs. Whatever clubs or groups you belong to, make sure that the message gets to them all too. Of course if your first salvo doesnt make them change anything, then I would get together with as many people as you can , to write to the hotel, explaining why you will no longer be visiting them , and how this will include all your family friends etc etc. You could also try sending another letter to the local paper and ask for people to contact you with any other local places , doing the same sort of thing, so that you can a) avoid them b) make a list of these sharp practice places that you could all check up and avoid such places. One of the main reasons seems to be these days , that hotels and restaurants pass over their car parking to third
parties , to save them getting involved, and think that this will save them hassle, and for some ludicrous reason , think that we will only be annoyed with the parking people rather than the cafe or hotel that has allowed them to take over, without putting clear notices easily visible in the entrance to their properties so that we all know where we stand.