Must admit had to do this once with my father in the local morrisons, it was pouring with rain and I had to get him into a wheelchair to get him into the store, had my son with me too, finished up using a family bay
Somebody said why did you park there, its for families, bad wording, my reply was how much more of a family do you want there is 3 generations here now, I can alway fetch my other daughter and son and make it for if you like? But the response from an 85 year old guy who was getting wet was not as diplomatic as mine
Must admit only did it because the disabled bays were full, and struggle to get him out of the car into the chair in a normal bay due to the width
But I agree, these bays are there for a reason, and get abused too much through inconsiderate people