Not fined for filming, fined for making money from the videos, because they were posted to their YouTube travel vlog, without some "filming in a national park for the purpose of making money from your youtube travel blog" permit. Still ridiculous. Seems like whoever made the law wasn't thinking clearly. They probably wanted to prevent people from bringing entire film crews into a national park and stopping traffic. But presumably I can bring an entire film crew in and stop traffic, as long as the videos aren't making any money. Amazing.