It clearly does provide some advertisement for you, even if you do not want or require it. The general public are being informed about an item on your CV.
I am sure that there is a lot more to this story than I know. I only just encountered it and newspapers are notoriously bad at accurately portraying anything remotely technical.
I refuse to talk about only things I know. Nobody else does, and it would make finding out about new things difficult.
I am sorry to hear that you had a bad experience here, I have had numerous shitty clients over the years, however if your client does have a case to answer, the wise thing to do is go down the legal route and do not air any dirty laundry until after the dust settles.
You are not going to like this, but if you get enraged by someone throwing around the word unprofessional, then you are unprofessional. You might be the best coder on earth, but the professional response to being called unprofessional is to ask for written examples and a followup meeting, not rage.
As far as the plan to save up in order to go off and sue people whose fathers are famous and well connected lawyers, I do not know the details, however on the surface it doesn't sound all that good a route to happiness, but at least you will find it easier to accomplish now that you have had your work promoted in the national press.