Hit pothole

Hello all. First BMW. First post. I wish it were under better circumstances.

I bought the car a little over a month ago, a 2004 330xi with 90,000 miles. Absolutely love it. Changed the ATF, transfer case and front and rear diff oils per the suggestions of this site. All was well, and I was ready for 200,000 miles.

Then I hit a pothole several days ago. I immediately felt a change in steering dynamic. While the vehicle will track straight, the wheel is slightly off center, to the right. Also the steering gives slightly more resistance when turning left than when turning right.

I brought it to the dealer to inspect, they said they saw nothing. I had them perform a full weighted laser alignment, and the car still drives exactly the same.

I'm somewhat familiar with suspensions generally, but not BMW specifically. If the tech inspected the control arms, strut mounts, etc., and the car is now aligned, is the issue related to the steering gear? Or possibly the drivetrain?

This car is flawless otherwise, and this is really nagging me.

at 90k you might consider getting new control arms and bushings. just saying.