I just thought I'd mention this here as it might be useful to someone.
I was talking to a relative yesterday who works for Morrison's. She mentioned that Morrison's are introducing an 'autism friendly hour' where their is no music or any announcements in store, the lights are dimmed and the noisy metal cages are not used.
She didn't have full details so I am not sure when it is or if it is in all stores but I thought that anyone who was interested could contact their local store to find out.
Just passing the info along. Hope it is of some use to someone.