Just fucking go under the car yourself. Undo the jam nuts on each tie rod end. Turn each 1/4 turn. Tighten the jam nuts and go drive it. Repeat that until it's centered.

As long as you do the same thing to both sides, you're not affecting the toe of the wheels relative to each other, but are affecting where the toe is relative to the steering shaft.
If you go the wrong way, the angle on the wheel will get worse, if you go the right way it'll get better.