I know I know, I'm sorry for another P&C space thread 
I'm really really not trying to start the whole debate up again, I know it's been done to death 
Genuine question though, AIBU to park in one if there isn't a disabled space free? Normally I use a disbled space (I have a blue badge) or sometimes P&C space if I've got one or more of the children with me. But today I needed to go somewhere and didn't have any children with me, when I got there the only space free close enough for me was P&C so I used it.
But I was given several dirty looks by mums with toddlers and one was going to approach me to 'set me straight' but her friend stopped her
So was I really out of order? Or is it an ok thing to do?