Update on Gold Heist in North Carolina

More details have emerged on the robbery that took place on I95 in North Carolina. The 3 armed robbers who tied up the armored car drivers and walked them into the woods wore masks and took 275 lbs of gold worth an estimated $4.8 million dollars. They drove off in a white van. Okay so I can see 3 men transferring 275 lbs of gold in a few mins time and not needing a crane to lift it. Just strong backs. hahahaha The gold was heading from Miami to Massachusetts to jewelry makers. It still has to be an inside job. I want to know what caused the mechanical problems that prompted the armored car drivers to pull over in the first place? And did they radio in when it happened? Why wasn't there a lead and tail car with armed agents escorting the truck from jump street?? That should be SOP in this situation!!!