Guys it's a $100 fine. Main reason is as u go over a hill the fog lights blind the driver coming the other way. Most of my colleagues don't bother with it but u'll get the occasional Cop who gets off handing out 'fog light' tickets. Easiest way to avoid it is to keep them off, they don't make that much difference at night, but yes they look good!
Hope this answers some questions. And yes I am a cop and yes I drive with my fog lights on at 4am coming home.....