"CONCORD, N.H. (AP) — If a New Hampshire man thinks cops lie, he's free
to say so on his license plate, the state's highest court ruled Wednesday.
In a unanimous decision, the state Supreme Court agreed with the
arguments of David Montenegro, who wanted the vanity plate reading
'COPS LIE' to protest what he calls government corruption.
State law prohibits vanity plates that 'a reasonable person would find
offensive to good taste.' But the New Hampshire Civil Liberties Union
argued that the law is unconstitutionally vague and gives too much
discretion to a person behind a Department of Motor Vehicles counter. ..."
http://www.newser.com/article/c91548118d0443b295b327c0f0e08e6b/new-hampshires-highest-court-says-copslie-vanity-license-plate-is-protected-by-free-speech.html