I actually disagree on being willing to accept the incorrect exterior color in this scenario, but I guess that's why they call it Individual... We all have individual tastes and put different values on different things.
OP - can't wait to see pictures of your car once they make it right.
So... who here is going to swoop in and snatch up the
Atlantic Blue M3 mistake? I'd wager to guess that it's the only one in existence. Blue stitching! Slightly used!