I'm wondering if this was a crime of opportunity, or if the perpetrator caused the flat. Seems like you could scatter some nails in the road and follow a car to see if they develop a flat tire. But it might be easier just to drive around until you see a car on the shoulder.I have to wonder just what time of day this robbery/shooting took place. As for me, even with something possible being wrong with my vehicle, I would be looking for a business parking lot where other people were that could be a witness. No way that I'd just pull to the side of the road.