Guys,
I just discovered something cool by accident. From reading here, apparently, our brothers in US who has comfort access option cannot fold the external mirrors by touch. They can do so by holding lock button on remote only.
I locked the car yesterday via touching the driver side handle, and turned to speak to some one. When I looked back, the mirrors are folded up! I called BMW service last week and they told me they had no way of doing that. This must be a bonus for us