To reimburse states for their emergency declarations, the President could authorize the Treasury to require a full account of receipts before releasing funds from the Treasury.
If it was a stationary webcam similar to some vehicle dash cams, it saves the video to a file for a designated time, stops momentarily, and continues recording to a new file. Keeps the video files from being too large or long. On playback the file switch would not be noticed unless there was movement at the point.
or it could be something else entirely