A couple of years ago now, I took my wife, who has a "Blue badge", in my Citron Berlingo van to our local Morrison's to A, do our weekly shop and B, fill my van up with cheaply priced diesel.
As I stopped in the disabled bays, a person next to us proclaimed, "That's not disabled" for all to hear. My reply, at the same volume, was "It's my wife who has the badge, not the van, that's for transport"!