An alignment shop adjusts the steering mechanism so that the steering wheel is centered. This is very simple to do, and is part of the alignment process. In your case, I would have an alignment done just to be certain that everything is within specifications. The alignment is worth it for proper handling and to prevent unnecessary tire wear.
By the way, for any steering gear work, I always go to an independent alignment shop. Years ago, an independent alignment shop proprietor showed me his appointment book. He had appointments from dealers and tire shops who had alignment racks, but when these dealers and tire shops had problems, they sent the work to this independent specialist.