scr fault code, stop engine immediately

So um yeah, I've had this truck for about a month and today I get our favorite stop engine, limp home debate mode codes blah blah blah....
it's under warranty thankfully but not my downtime....lol
Anyhow question is is what type of damage is done to engine if any if you don't stop the motor, like just by idoiling it?

 

scr fault and limp home mode,, I made it to dealer but problem is there backed up and I'm stuck here cause yeah now it won't go over 5mph. they'll run the codes tomorrow but might be a week till they can get tools on it, need some other work done but a week is gonna kill me