Apparently I am according to a woman shopping at Sainsbugs.
Got into the car park and parked up (yes in a P&C space - they were ALL free) and saw that my 16 month DD was fast asleep in the back so settled down to listen to the radio and MN when someone knocked on my car window. I opened it and smiled at the woman standing there and asked how I could help. She said that I shouldn't just be sitting there and use up a space if I wasn't shopping.
We had been there for about 10 minutes at this time and the car park was hardly full. I just gaped at her and pointed out DD who was snoring and said I was waiting for her to wake up and as the carpark allowed you 3 hours parking I didn't see the problem.
She then muttered that she would wake the child so not to "hog" a space. None of the other P&C spaces were used at this point.
So was IBU to wait there?