Personally, I would stick it out. You made it this far, would be good if you could provide proof that you kept in contact with trainer who let you down.
If I had good footing to get out from under the debt of having my CDL training paid for, without it biting me in the behind, I'd jump at the chance!!!!
Go to Marten transport in Tucker, GA or Memphis, TN. They'll love to have a retired Marine. Automatic detention pay as soon as you arrive at $20/hr. I was with them 19 months! @mjd4277 can tell you more.
I had a similar situation with CRST back in ‘04, but I wasn’t just abandoned at a terminal, my truck was issued to another team after my team mate had to leave due to family emergency. If your still attempting communication and getting nowhere, I’d consider that a breach. My opinion. If the wheels are not turning, your not earning.
Spoke with the Director of Training yesterday Said he'd look into it and get me back on the truck. Crickets. Haven't heard from my trainer Crickets Today's been 30 solid days since I've been. On a truck