Imagine the amount and variety of swear words that came out of CS's mouth that day!
Considering the 'late June / early July' date of the derailment, Ford likely had taken over the entire Shelby production operation by that point.
CS wouldn't have even blinked an eye at the disaster, maybe he didn't even know about it. since it wasn't his mess to deal with.
With hoards of '67 inventory to move, Ford (or CS) would benefit from the accident. It was 14 (or 15) less units to move through dealers.
The article mentions the undamaged cars were sold at invoice. Seems the railroad was responsible for the entire lot of cars.
I do think there were 15 cars (each rail car had three rows; 5 cars per row make sense.)