You don’t have to have a debate, but using that image as a reaction makes you look like a child. Just respond thoughtfully, or don’t respond at all.
Really bro? That’s what we’re doing now?
I don’t want to be the guy defending cops, but there is usually more than one officer in a squad car. There is no rule against a passenger being distracted.
I’ve never met anyone like that in person, but some people genuinely believe it.