This happened near where I live. Driver hit a cat that was instantly killed. Next driver along stopped and laid it down on the side, as the 1st driver kept going. I saw what was going on, and took it to the vet. Sadly there was no chip found.

Sort of keeping on subject, many years ago there was an old guy living in the village where I grew up as a child. His house had no electric or gas. Everything cooked on the log fire, and candles to find his way in the dark. He always moved road kills of any kind to one side. But if anything found was fresh enough, it went in the pan for dinner. BTW we are talking rabbits here and not cats. He also lived to be a grand age.