I remember a couple of years ago there was a major rotary workshop broken into, one of the customer cars that was stolen he had just bought and did not have insurance, the workshops insurance didnt cover it either.
moral of the story be carefull, after this incident it came to light that a lot of workshops did not have insurance on customers cars, personally if its in the factory or in the yard, if im leaving my car there to get worked on i expect to be covered.