I don't take my daughter to the village pub in the evening as a lot of people just tut and stare at her, even though she is about the same volume as they are when laughing. It's just a village pub.
Genuinely sorry to hear this, must be awful, and again frustrating. I don't experience it that often, but I have been in the position of being tutted at by randomers as DD has had a meltdown before. It feels shite. Must be worse if its constant too, I only have to deal with the stares and such once in a blue moon (now, was often until we learnt what sets her off).
I kind of see a difference between a pub, where one would expect noise, and *a spa day specifically marketed for quiet and peace.
*Using spa as people seem hung up on the attitude of the manager when discussing wider points. I agree the manager has a bad attitude on their replies. But the attitude doesn't really come int the wider conversation about clearly clashing rights, of 2+ different disabilities.
On the meltdown thing actually, I havebeen 'told off' by other parets of children with SEN for removing DD from the situation to calm down somewhat. Apparently, I should just stay there and not move because its not her fault. Besides moving away stopping the stares, it just seems the..well civilized thing to do, when its a proper meltdown which then triggers worse behaviour as her own screams set her off in other ways. Thats always a fun time.