1) If I hear my front door being broken down, I'm taking a defensive position with firearms drawn.
2) Police had better be ready to demonstrate their right to enter my home.
I agree with number one.
While eventually I expect #2, I don't expect that to happen when I have recognized them as police and still have my gun pointed at them.
In my opinion, that is what the lawyers are for. Armed confrontation with a police force already in your home almost never is going to end well for you.
Assuming they are wrong, you want to be still alive for the court settlement.