Insulting the police?!

What are they teaching the police officers up in Prince George’s County, Maryland. A family reports an attempted armed robbery outside their home. They allegedly send off the would be robbers with weapons of their own then call the police to report the matter. The police respond and shoot eh victim’s dog and arrest the victims for multiple crimes including insulting the police. The armed robbers are still at large but the police are protecting the neighborhood by arresting people for insulting the police. If they made threats no problem, but insulting the police? First Amendment anyone?

H/T to Firehand.