If course if there is nothing wrong with the car, and nothing breaks in this 1 year warranty loss, then no harm no foul. I wouldn't get an attorney until there is a real reason to sue. Suing on principle with no real loss would be a waste of money. But rattling your saber and telling the dealership you've always wanted to own a dealership would be fun.
I had a lot of fun threatening a certain popular recliner furniture company (rhymes with hazy boy) when it took them 6 months to repair a broken recliner, and in the meantime a second recliner in the set broke. For the cost of certified mail, and envelope, and some time spent writing a letter, they jumped through a bunch of hoops to make things right. The certified mail is the only way to prove that the received the letter and making them think that you've consulted an attorney.
So unless you purchased a demo model (which places the car in service) and you think you really have a case, go after them and go after them hard. If you get to the point where you are looking for an attorney, find one that is so mean, even you don't like them. You're looking for a putbull who will make their life miserable.