Yikes, Dave!
That's certainly something that sounds like it could have nasty repercussions for you, especially if they got your license plate & have any shady acquaintances at their disposal.
Hopefully nothing happens from all of this, but it's hard to say judging by your recollection of what they were willing to do to you while in pursuit. Stay safe, buddy!! Perhaps you should invest in a couple tactical knives to keep in your car along with a .40, .357, or .44 by your bedside. That's quite the assignment to be given, let alone being chased afterwards!!