[GixY2K]

Not when I did my brake-in service. I asked if I could be there to witness the whole process, and they were happy to let me. Once they were done with the engine oil/diff. oil change and resetting the car computer, I was given the keys and drove off.

Had I not witnessed the whole process and noticed 5 miles, I would be asking questions at a minimum and expecting a logical/legitimate answer.

Unless you're changing oil on the dark side of the moon, I don't think the engine needs to be at operating temp. Besides, driving it to the stall would make it warm enough, I would think.

Additional note:
As mentioned above, is better to let your SA know how anal you are and request to be with the tech if he needs to do any driving with your car. It's a BMW dealership, and I bet this is a normal request.