Update: it just started charging about 4 hours after being plugged in. I now have 8 miles on it. I'm hoping it will hold the charge and let me drive to the service center tomorrow. If it doesn't then I will be in a precarious situation so roadside assistance will be necessary. I need them to find out what happened to my hundred miles overnight. I don't want it happening again. You know, I asked the ranger that came out for a different issue a few months ago about my 12-volt and if he could see what the date was on it. He said they don't have dates on them and that it will give me a warning well in advance before it goes out. I've heard that this is not the case all the time. Did yours give you a warning?
No, no warning, that was part of the problem. In many cases, the car can detect a failing 12V and warn you (and Tesla) up to a month before it fully fails, but not always. Since there was no warning and no error codes were thrown, the service department would not send out a mobile ranger to replace the 12V. They claimed they had to have the car in the service center to troubleshoot. That's when I asked them how to get it there. Response was Deer-In-The-Headlights / <Crickets>.