2015 Ford Focus flat tow damage

The steering was unlocked and car is in neutral with negative battery disconnect. I did everything per Ford instruction . When I make a turn like that I always look in my mirror it see how the car is doing . When I made that turn the wheels were turning and I saw the front of the car come off . I pullover right a way to inspect the damage. I had the car towed to a Ford garage and Ford would not even look at it . I towed that car 50,000 miles i believe the stress on the unibody just gave out . I believe this was a blessing if I was going hwy speed it could have been more serious . This car was a lemon from day one Ford had it in the shop 4 times for transmission and module problem . My insurance totaled the car . I could not gotten that much on a trade . Bottline line if you are going to flat tow make sure it is a full frame or Unibody that is all one piece with no stops and stay away from Ford .