It depends how far off the steering wheel is.
If it's only slight, you can adjust the track rods to compensate. Turn the wheel from it's deflected position to straight ahead. If that means the road wheels turn to the right slightly, then you need to shorten the right track rod and lengthen the left one. Or vice versa if the alignment is the other way.
It's very easy to mess the tracking up, and it's also trial and error, so mark both track rods so you can ensure equal rotation. It's as well to check the tracking anyway after doing this. A simple wooden rig which measures the distance between the rims at 3 o'clock and nine o'clock works well enough.
