What about the mall? Or the grocery store? Or the car dealership?
No idea. In all of those places I would not retreat to my car to retrieve a firearm, I would already have it.
When I despair, I remember that all through history the ways of truth and love have always won. There have been tyrants, and murderers, and for a time they can seem invincible, but in the end they always fall. Think of it--always.