So I pulled up in parent & child parking, & as we were getting out, so did a car with 2 adults. I pointed out that this was parent & child parking, noted the scooter in the back of the car, & helpfully self-righteously pointed out that there were plenty (about 10 times as many) of disabled spaces a mere stones-throw away.
Them: 'Oh, but they are a long way from the store & it's a long way to go when you are disabled'
Me: Yes, well I'm ok with mine (1 & 3), but it's a long way to go with a newborn baby if you can't park here'
Them (tone of voice changes from the previous slight whine): 'Fuck off!'
Me: [stunned silence that anyone could be so blatantly rude & inconsiderate in so many ways at once]
Them: 'Go on, go away. Fuck off!'
Me: 'You are rude. You are very rude.'
So I've since established that a disabled badge means you can park wherever you like, including parent & child spaces, because these are only 'courtesy' spaces, not legally just for parents with children.
Which is fine. I have no problem with that.
But this person was using the space because it would otherwise be a long way to go 'for a disabled person'. And were then later observed by myself to be transporting themselves around Sainsburys IN A MOBILITY SCOOTER. It would have had to use an extra 2 minutes of battery to come from a Disabled parking space.
And they were SO RUDE 
Must go, the chilli's burning.