On the way into caucus this morning, Education Minister Hekia Parata said the Prime Minister had made it clear he was wrong and had apologised. Women's Affairs Minister Louise Upston said she had already made a comment on it and Mr Key had apologised "so I think that's the end of the matter."
Ms King said Ms Upston's response was "appalling." "All she did was to back up the Prime Minister's comments that he didn't really mean to hurt [the waitress'] feelings."
She said it would be outrageous if Mr English or Mr Key tried to dodge questions by claiming he was not acting in his capacity as Prime Minister.
In Parliament, ministers can only be questioned about areas they have ministerial responsibility for and Mr Key has previously avoided answering questions about his interactions with blogger Cameron Slater by saying it was not in his capacity as Prime Minister.
Ms King said Mr Key was "always the Prime Minister."
"He was there as Prime Minister, he is always the Prime Minister. He was there with Diplomatic Protection Squad members. If he is a private citizen, he doesn't need them there does he? He was there as Prime Minister and he will need to answer questions back home in New Zealand eventually."