Lock smith doesn't need to pick the lock. They put in a deflated airbag in the corner of the door and inflate. They then drop a strap down on a jimmy rod and loop and yank either the lock or door handle.
Any tow truck driver can do this. Your car is not special, other than the alpina tuning.
Do you have service via your auto insurance or AAA? I've done this more times than I care to admit. It takes about 15 minutes because the doors are sturdy.
Please don't break the window.