Do you really expect you can give a cop lip - while being cited for a traffic violation - and skip away?
Yes, because I live in a country where--supposedly, anyways--I am given the right of free expression. Telling a cop anything short of a threat, especially as it concerns the laws and especially especially when it is the cop being wrong about the laws, should be a non-issue.
You're a damned fool if you think that this being "just about standard procedure" is anything other a really bad sign.