Steering Column problems of the 2007 Mazda RX8

I was sitting in the car in the parking lot of my job and the steering column moved while in the locked position and I left the parking lot and was driving home and a piece of the steering column broke and fell and hit my right leg as I was driving down the road I called Mazda USA and they had the car picked up and towed to the nearest dealership to be diagnosed on 11-14-2017 I received a call on 11-17-17 stating that the car is out of warranty and they were not going to fix the steering issue this is the first time I have had a steering column break on any vehicle I've ever owned I have a car that is 30 years old with the original steering column in it it is a huge safety concern the car is not safe to drive in it's current condition.