I'm not sure, they are in NY. I did a quick Googling and it says there's no specific legal mandate on the storage period for a restaurant. For any recording in

I'm not sure, they are in NY. I did a quick Googling and it says there's no specific legal mandate on the storage period for a restaurant. For any recording in NY, there is a legal requirement to post a sign that there's a camera recording both video and audio (which they have). I do see that all over the place in general. The sign needs to be in clear view.