Apparently you do not know what attorney client privilege is. I'm sure if I'm meeting with my attorney at the courthouse my attorney nor I paid to meet there. In using your words. The meeting between my attorney and me is a private meeting in a public facility at no charge to hold a secret meeting. Why should you have to get the DA's permission but do not have to get someone else's permission? Should you have to get the judges' permission to put a camera in their offices. The DA is a public office in a public facility.
The Golden Corral is a public place. It is open to the public. The public does not pay for it with their tax money, but it is a public place in that it is open to the public.