Over the years I've become pretty adept at avoiding these situations. Snaggers seem to have only enough energy to walk a quarter of a mile or so. Find a hole a mile away from the parking lot and you just don't see many snaggers.
If I do run into snaggers and feel the need to say something it is usually a shameful one liner as I'm walking away!
I also carry a .357 to defend my life and property. No snagger/Coho is worth a manslaughter (or worse) rap! WALK AWAY!
Just my .02.
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"Government does not solve problems; it subsidizes them." Ronald Reagan

"The trouble with Socialism is that you eventually run out of other people's money." Margaret Thatcher.

"How fortunate for governments that the people they administer don't think." Adolf Hitler