To be fair you ignored a request not to get into a lift that you knew was already overcrowded, i'm sure there are Heath and Safety implications involved so i'm not surprised she was a bit miffed.
To be fair the elevator was not overcrowded, at the entrance before the doors opened there was five of us waiting to enter the lift, I, my OH, Bloke & Child and some lackey they had with them, we all stepped back when the doors opened to accommodate a young girl with stroller who was exiting the lift. At that point there was no one on the lift.
They proceeded to enter the lift at which point their lackey uttered words 'lift full' to us, she was lucky my OH did not slap her disgust towards us of her face. Elevators at Westfield can legally accommodate 15 i believe.