"I was in the slow lane, and a CVS tractor-trailer was about 40 yards ahead of me in the middle lane,” Quinlan said. “The tractor went around, but the trailer clipped it. It started to spin, way up in the air, so I braked. I was watching it, and when it went out of my view, I instinctively ducked to the left. Bam, it came through the right.”