Out in the Parking Lot

It's bitterly cold outside. Winter has set, the temperature is approaching 20 below and the wind is picking up. Pete encounters a man in the parking lot at his local mall. The man wore winter boots, gloves and a winter coat. He must of been there for some time as he was shivering.  As Pete was loading his groceries in the trunk of his new SUV, the man approached him and asked him for a few dollars so he could get something to eat and warm up. Pete didn't think the fellow look homeless, after all he was dressed pretty decently. Pete asked him where he was from. The man said he had hitched hiked to Regina because he heard there was work available here.

"A likely story," thought Pete, "I heard that one before."

Pete paused, the man looked sincere, and although he was dressed well, he was shivering. Or was the shivering just an act. Maybe the man needed cash for some drugs, or maybe not. Maybe the man was really hungry. How was Pete to know?
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What should Pete do? More importantly, what would you do?