While I don’t drive to shul on Shabbos, I would not tell someone who does this that they are wrong and I am right. Perhaps this is a person who would otherwise be going shopping, going to the movies, gambling at the racetracks, etc. We need to be accepting of others who may not be as observant as we are. I don’t feel that one Jew has the right to look down on another Jew because of a different level and way of religious observance. I am doing what is right for me and this person is doing what is right for them.