It may be a prudent policy to always be polite to the police, but does that mean Americans must give up the right to be rude?
A question similar to this — transcending it, in fact — is now before the Supreme Court of the United States.
It started at an Alaskan event called "Arctic Man," where an individual engaged in two contentious conversations with two policemen. The second conversation ended with the policemen arresting the person, who, according to a petition filed in the Supreme Court by the attorney general of Alaska, "was charged with disorderly conduct and resisting arrest."
At issue now is not that state's laws forbidding disorderly conduct and resisting arrest but a federal law that permits individuals to bring suit against government officials who use government power to deprive them of a constitutional right.