Hi Joe,
Unfortunately you would have to bring the first fish home. If you keep it, then catch another fish the next morning, after midnight, you are now in possession of 2 striped bass for that day. While I can understand the time stamp on the picture, and am not by any means saying your a criminal or doing anything wrong, it would not prove that you caught the other fish on the next day. We have had numerous occasions like this where people have tried to pull a fast on us claiming they caught one striped bass at 11:00 PM and caught the other after midnight the next day when we have been watching them, then pull the cell phone picture time stamp trick. Or, take a picture of only one fish when they caught two the same day. I know it's a hassle, but it would be in your best interest to bring the fish home and come back. Hope this helps.