Regarding the LCA problem, I have similar experience. I had my dealer replaced all LCAs thi summer because of the front squeaking problem. But they are back again. I am going to take my stang to dealer for the 2nd time.
I don't know how should I survive this after warranty. It costs big money. parts, labor, and wheel alignment....
Let me escalate this to the customer service manager for your area. Please PM me with your VIN, dealer, mileage, full name, and best daytime number so I can help.