Well, the "lip service" was the genuine statement that I hoped I was missing some humor.
If one were a teacher, I'm not sure how the statement could be anything but insulting. And I'm sure you didn't mean it that way, but if I were to say, "Do police actually enforce laws, or are they looking to carry guns, be over-authoritative, and harass the public**?" then it would be insulting to police. And no, I don't feel that way.
Teachers and police are two arenas of tough jobs. They don't need others making it tougher, although that certainly happens. Nor should they be beyond review and reproach when they don't do well.
I trust I answered it, at least from my experience and perspective.
**I did have one police acquaintance who told me that, in fact, his job was to harass the public. It's sometimes hard to tell, but I think he was serious.