Thanks all for your input. If I was in the store and he was outside, I would call 911 and "wait and see" how it developed. If I was at the pumps and he started coming into my space, I would have been more assertive to get him to back away.

Like the article touched on, I suspect the guy was trying to get a reaction from the people at the pumps by imitating the escapee that murdered a deputy and wounded another in May this year. After attacking the deputies and crashing the sheriffs transport van, the escapee took off with the murdered deputies pistol attempting to car jack a car, with his hands still cuffed in front of him. The escapee shot one civillian in the neck in an unsuccessful carjacking attempt before he was able to get a car. He was caught after a car chase.

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Vegan by proxy.