I see it as a polite way to redirect the conversation. I usually respond similarly -- although not that exact wording. From what I can tell it's never agitated

I see it as a polite way to redirect the conversation. I usually respond similarly -- although not that exact wording. From what I can tell it's never agitated the cop, and they've never insisted that I answer their question. They just move on with the traffic stop. Sometimes I get a ticket, sometimes I don't.