While traveling, one really sees extremely interesting things that cannot be seen at rest. For example, some amazing cars that just fly past you and you would never see them again. Or the objects that are visible from the highway, but there is also no way to even stop to photograph them, so you must always be ready. I do this with the phone sometimes because I can't handle the camera when I need to take a quick picture, but it's often quite frustrating anyway.😃
P.S. I had to google this "hard shoulder". OMG, this language 🤦