Believe it or not I am a huge proponent of civil disobedience, if it is done the right way. I suggest a more powerful approach to get your point across...organize a bait-in.

Get you and like minded fishermen together in a floatilla or in a huge line on the bank, let the local media know what you are up to (if there is a media outlet paper or TV with a conservative bent they are more likely to cover your event).

A picture of one guy casting bait in closed waters isn't very powertful, 100 guys?? more?? Invite the outdoors columnists, make sure to tell them there will be free donuts, newspaper guys like donuts even more than cops...

Civil disobedience can be the most powerful weapon in our arsenals as citizens if applied properly, I hope you take my suggestion Keith.