During the hearing, he did tell me "this is a park issue, not an FAA issue." He pointed out that there are FAA exemptions to jurisdictional authority. At that point, I said that I believed I had done my due diligence by checking sectional charts and pre-planning my trip on AirMap. But I believe this only adds to the confusion about what local/regional agencies are able to do with regard to restricting airspace.
I remember reading your FAA case law quotes that the FAA jurisdiction over rules any local bylaw in regards of any airspace within the USA borders, and several Supreme Court Rulings were quoted that established this. The Judge in your case ignored the Supreme Court Rulings, I suspected this might happen, which is why I said to you that appeal would be a good option. If this went to Supreme Court, they would probably over rule the conviction as they are not concerned with upsetting any other agencies including park rangers. You did not take off or land from their jurisdiction and the air is governed by the FAA, those should be the only facts of the case.