Likely the camber didn't change much, but FWIW that front-end alignment costs less than one decent tire.
Keep an eye on the tires, measure depth in the center, left and right weekly or so & go from there. The 50-50 weight balance of a BMW make for long-wearing tires.
You covered the bases though...no need to do it if the car is gives fairly even tire wear; pulls, wanders, or if the wheel doesn't come back to center.