Sorry, NAPpers, but a gun in your face = war.
But don't kill yourself; live to fight another day.
Rig up something like a claymore mine inside the door or behind front fender (?), with thick backing / blast shield (or at least some outward-facing shotgun shells... hidden somewhere / somehow).
Not sure how best to accomplish, but worth some thought. (Of course the instability of many explosives would be problematic... never mind accidental ignition during a car accident, etc. Yikes...)
What would the Founders do?