Brian -
We didn't learn it was a different car, over the period of years, till later in the thread.
In my state at least, it's perfectly legal and common for people to walk around openly carrying, not only on their own property but at Wally World, Grocery store, restaurants etc.
If you were parked in front of my house, and I came out with a holstered pistol while I washed my car (which I do all the time), and you then called the cops, that would have ended in a good resolution. The cops would verify that I'm ok and that you're ok. And that is the desired outcome here isn't it? To verify that the stranger is ok?
The original question was posted to a gun forum. Then the OP, and apparently you, feel it's not appropriate to suggest a perfectly legal gun related resolve to the problem. I'm not exactly sure what the OP is hoping to hear. Sounds to me like he's talked himself into thinking "it's probably ok". In which case, I'm not sure why the post in the first place.
Sgt Lumpy