IIRC they adjust that by messing with the tie rod ends ... so it should be done by an alignment shop.

I rekin you could pull the steering wheel and adjust it that way but it's an awful lot of work due to the airbag. I've heard that doing that can mess up your turn signals turning off automatically after a turn.

Others may have a better answer for you though.

It wasn't clear from your post - did you get an alignment after the accident or are you just assuming that the alignment is correct since it's tracking straight?