"Oh," she mock-drawls in return, though mostly directed at Lucius, "he has your tone down pat, love." It's not entirely sure if she laughs at her own observation, the fact that she quickly discovers that the only way to cross the aisle safely is to keep clinging to her partner in crime, or the absolutely horrible and not-thought-out-at-all plan that makes its way across her substance-addled mind next.

"Peasant, I am the Queen." There is a vague concept of nobility in some wizarding fairy tales, she can make it work. It's not like he has ever been anywhere near a castle, he is obviously going to have to make himself a sandwich, judging from his shopping, so how would he know any better? "As my... something... tried to conceal. And we are forcibly seizing your aid."

The fact that she can still sound vaguely menacing speaks entirely against her nature, let's be honest. They could do with a muggle, though, because left to their own devices, she suspects they would be spending a significant chunk of the night in some state of inconvenience store confusion. Besides, he's a muggle. This could get all sorts of fun, as soon as they have sobered up enough to use magic without great risk to their own health.