That does look abnormally large.... your photos are cropped pretty close, but based on what I'm seeing I think it may be more due to the alignment of the black lower piece for the mirror than the car's body panel (look at the gap between the lower mirror trim and the upper door trim on the side that looks more normal compared to the side that is not). They may be able to fix it just by adjusting that lower trim piece.
You seem to be located not too far from where I am. You can create a service ticket, because it's an exterior panel the app will try to schedule you at a service center instead of mobile service. I've personally had more experience with the SC in Costa Mesa for exterior issues than the one on Barranca. Even though it's been two weeks this is clearly not a wear and tear issue (like something with the paint or a scuffed wheel, etc) so they should still look into it I think. I had a minor alignment issue with the corner of a bumper that was fixed 2 months after delivery.