This is an experience my sister, her husband, and I had about 20 years ago. We were driving back to her house one night, going just past a truck stop when an old man stepped out in front of us. Her husband who was driving slammed on the brakes, and we all started freaking out because the old man had disappeared. My sister and her husband jump out, thinking they'd just killed the man, but there's nothing there. Cop comes along and a few truckers wander over and tell us that it's an almost weekly occurrence.
Apparently there'd been an old man who'd lived and later died in the house across the road who used to go over to check his chickens every night before bed. (The chicken coop had been torn down years before when they'd built the truck stop.) When they tore down the house a few years after that to make way for a heavy equipment dealership, the sightings stopped. – ThanatosX23