So I was filming at Pinchot Park in Pennsylvania for my show I'm making. What we filmed was a kayak race, a bike race, and then two cars driving in a completely safe manner. I was stopped by a park ranger of the DCNR and she said we needed permits to film. I said that we were not a professional film crew, we have no intentions of publishing our movie for profit, and that we are no different than the parents filming their kids playing on the playground. We argued for awhile and she left and said if she catches us filming she would cite us. Well we filmed anyway, and I called monday to ask the park manager and he confirmed that we didn't need filming permits for something like that. Can anyone shed some light on when you do and don't need permits for filming? Our equipment btw was 2 go pro's, several point and shoot digital camera, and iphones.