Brake Override Malfunction 2016 Tacoma

My truck has been down for almost two weeks. I got a break override malfunction warning light out of no where and the truck kind of felt like as if the battery was going to die and the error came up but went right away. Fast forward 2-3 hours I go back out to start it and it wont crank over and the error comes up, brake override malfunction contact dealer. It took a week just to get it to the dealership and after it being there for 2 days I go in and try to get the results because I havent heard back. Well they are so backed up and all I could get was a repair quote from them. They kept saying they can bypass the relay and it will be good for a temporary fix in the meantime but 2 days later they finally call me on Saturday to pick up the truck and tell me 3 hours before close that they were unable to get it to where it can drive and if I want to come get it it needs to be towed out today otherwise come Monday to settle the bill for the diagnostic.

They quoted me 3,900 for the part and about 1,200 for the labor. At this point I don't even know what to do. This is what they left me with. Where do I go from here?