Steering Column problems of the 1997 Ford Mustang

As I was making a left hand turn on the highway at approx. 15mph, I heard a loud pop/crack coming from the front of the vehicle. At this time the car started to drift off to the right and onto the side of the road. I tried to turn the steering wheel left to compensate for the change and the steering wheel continued to turn in a 360 degree rotation with no control of the tires. At this time I felt something hit my shoe from above the gas pedal and I realized that something had broke causing me to have absolute no control over the vehicle. After inspecting the steering column, it was evident that the shaft had completely separated from the column that goes into the floor board and into the firewall to the engine. No broken/shard parts of metal nor any broken pieces that could have fallen off were laying underneath. It was as if the shaft was "pulled" out of the column hole. After further inspection at a body shop, it was noted that the vehicle had never been into an accident (just like the carfax report had indicated) because there are no structural damages. The technicians had never seen an issue such as this and have no explanation as to how/why the shaft would just separate with such ease. I've spoken to several mechanics and dealerships and they have never seen/heard of an issue such as this. I bought the Mustang from a local used car dealership and they have not disclosed any information regarding steering issues/if there is any to disclose. I am having the body shop completely replace the shaft because I do not feel safe operating the vehicle, if this issue is to happen again with such ease and I loose total control of steering capabilities, who is to say it won't happen on the freeway with children in the car?.