I can get the make and model just by looking out of a window, an 'assumption' that all Tesla's are visiting the chargers is not legally good enough therefore the rules apply to everyone using the car park whether to charge or not.
I get that, but have a read of the post of mine you quoted, I made no mention at all of anything related to anything to do with the the law, legal action or whatever, never even entered my head.
All I have ever referred to was the fact that it would be easy to determine the make of any car arriving using the ANPR they already have, and use that to save Tesla owners having to manually book in, using a similar system to that which Parking Eye already use for cars that belong to hotel staff. Clearly it's not in their interest to make life more convenient to supercharger users at the moment, but there is a contract that exists between Tesla and the hotel, so treating Tesla's in the same way as hotel staff cars should be perfectly feasible, if there was a will to do it. Tesla could, for example, require that the hotel ensure penalty free use of the superchargers, if they wished. It may well be that their contract already includes a clause to this effect, for all we know, so it could just be that the hotel need reminding of the need to allow freedom of access, free from risk of penalty.