He actually talked to members of congress about getting changes made in the ADA that would help out small businesses.
The disability advocacy groups protested him, he eventually settled his case (the lawsuit), and I don't know if his proposed changed ever took place, but I do know he held a deep grudge.
It should be noted, this movie was written by him after that case ended, and the woman who sued him, thinks the movie is directed at her.
Actually I believe Clint won that case at trial, I don't think he settled it.