In regard to snapman's post, I doubt that this woman would have too much difficulty finding an attorney to take her case on a "contingency fee" basis. As such, I don't think we can explain her failure to file a lawsuit on that factor.
With that being said, however, I don't dispute that this incident probably occurred. On the other hand, there really is very little import to this case for either side.
A woman was fired. Her employer acted boorish, at best.
Neither Bush nor Kerry directed their respective supporters' actions and there is no evidence that this sort of thing is widespread in either campaign.
Simply put, this story is a non-issue.