I have been in this situation before. The most important thing is your witness. When I was working offshore, my company adopted a policy of no smoking inside any vessels. Of course, this was considered crazy to the cajuns and ignored. On top of that, my office became the smoking room of choice. I was not in a position of authority but in one of quality control. I was holding the project to high standards which was rubbing the good-O'-boys the wrong way because I was backed by management. The smoking of authority figures like the captain and key project personnel in my office was an attempt by them to try and provoke me to making a stink, which was tempting considering my major problen with authority in general. They were picking a battle they thought they could win. On an offshore vessel, there is not much room for appeal. It was affecting me too, I was noticing mild nicotine withdraw symptom for the first few days on my time off. It all panned out, because when some ethical violations were attempted, my position was held in high regard because I hadn't been labled as a chronic whistle-blower. From my experience, I would recommend speaking directly to those whom you have authority over and as your official responsibilities demand, otherwise, leave it alone, there are and will be much more important stands to take, don't burn up you credibility on valid, yet insignificant complaints.