If your going to be driving it i would add oil. Just make sure you don't add the whole quart. Add half quart and let the computer check the oil again and then add more if needed. I got the same warning a week ago and added a full quart and I got the oil at max warning. I had to take it to the dealer to have them drain some oils. When it was all said and done it ended up taking them 5.5 hours.
2013 E92 M3
Space Grey/Fox Red Novillo