... there to "protect and serve" as they are sworn to do ...
The definitions of "sworn" and "Constitutional duty" may differ somewhat, but LEOs have no legal obligation to protect you in spite of what it says on many police cars. That's just a PR pitch.
WASHINGTON, June 27 (2005) - The Supreme Court ruled on Monday that the police did not have a constitutional duty to protect a person from harm, even a woman who had obtained a court-issued protective order against a violent husband making an arrest mandatory for a violation.
As a California resident, I'm fortunate that we have a fairly responsible, conservative police dept in my city. Even so, I've trained my wife and son to never let a LEO into the house (or her car) without a search warrant. If they come at the situation with weapons drawn then they can do whatever they please at that moment, but the very first call is going to be to a lawyer, hopefully while they're still there.