How restaurant cars operated?

My wife and I travelled by high speed train in the restaurant vagon. My wife was laying on the seat, when an employee of railchef asked if we were tohether. I tought, he asked to check her condition. Yet, he said in turkish “This is a private establishment. My supervisors saw you in the camera and told me to warn you not to sleep in here.” I would like to ask you if this gentleman told us the truth.
Thank you for your interest.

Hakan, Turkey