Security around all bases is taken very seriously. I am actually surprised that you still have your video and camera gear. They are allowed to confiscate any pictures and or equipment that is known to have taken pictures/ video of the base. We(gov. employees of any kind) are to watch for exactly the type of activity you were doing and notify base security. Once base security is notified the local LEO will be out shortly to "talk" to the individual and confiscate any material that could be used or considered a threat to base security. It does not matter if you are physically on base property at the time or not, you are recording base property and procedures.