Scruffy said:
Does she claim, or exercise, diplomatic immunity?
“Darth Vader. Only you could be so bold. The Imperial Senate will not sit still for this. When they hear you've attacked a diplomatic —”
“I don't know what you're talking about. I am a member of the Imperial Senate on a diplomatic mission to Alderaan.”
You could say she's not claiming diplomatic immunity here, but it would be a stretch.