Criminals engaged in home invasions in a number of locales have made a habit of breaking in the doors while screaming they were the police. If I'm not doing anything illegal in my daily life and have no expectations of a no knock warrant being served on my home, I will react appropriately. Force will be met with force. If your compadres have made an error then it may well be their last.
That is what will be known as a Pyrrhic "win" for you.