The thing that is the most troubling to me is that these bludgies probably didn't see anything wrong with what they were doing. On the contrary, they think this type of behavior justified to install a false sense of security. What they don't realize is that, as the students said, they don't feel more secure. They feel threatened by the blue-coats invading their school without a warrant.
It isn't hard to see that police are way out of touch with reality when it comes to public relations. I would guess there are some officers who still believe their job description is to protect and serve even though the SCOTUS has ruled to the contrary. There is a reason why the phrase is in quotations on their cruisers...it's meant to be sarcastic.
"To protect and serve" = protecting special interests and serving the government.