A good apology is that supermarkets now do quiet hours.
These are designed for anyone who needs to attend the supermarket when it's quiet and don't want to use the alternative home delivery service.
I love this service because not all disabled people (or even NT people) who struggle with loud environments wants to stay home.
It's a reasonable adjustment.
What wouldn't be reasonable is a load of service users and caters turning up with rattles etc to entertain them and trying to play some kind of disability top trump.
This is akin to attending a theatre and creating noise.
The issue - IMO - is that as a society we have become very entitled and self absorbed in our own needs we forget how that impacts on others.
Obviously in some ways that has been beneficial.
But in many it actually becomes detrimental. We've forgotten as a society how to police ourselves in public. How to ensure what we do doesn't impact on the enjoyment of others and tend to think our own needs trump those of others.
This has gone along with expectations of behaviour being lowered. (One example I can think of is an adult telling me teens couldn't sit for half an hour poolside in silence at a swim gala. I did ask how they thought these teens copes with school day in and day out!)
If you don't like dogs - don't go to a dog friendly cafe.
If you don't like noise - don't go somewhere noisy.
If you can't be quiet and sit still - don't go somewhere that requires you to do.
Reasonable adjustments are necessary to allow those with disabilities to be included in society.
They aren't intended to be incorrectly quoted as a reason to behave as you want in public at the detriment to others enjoyment of that public space.