While traveling through Wisconsin many years back we pulled into a rest area and were almost immediately blocked in by another car. The three passengers jumped out and starting yelling for us to get out of our car. We didn't have our CCW's back then...but I did have a really cherry M1 carbine...
My wife turned on the inside light as I locked and loaded a 30 round magazine. When last seen the other folks were exiting the rest area at high speed, leaving us with a new tire iron and a ratty aluminum baseball bat. Sometimes it's just handy to have a gun in the car...
Milspec