It was under warranty.
The dealership's repair techs looked over my car and couldn't find the problem without taking it apart. However my warranty doesn't cover taking my car apart just to investigate a problem. We were assured that just taking it apart to look for the issue would only cost $60, and it was incredibly likely that whatever problem they couldn't find would be under the warranty. Mr J and I talked, and decided to let them go for it. After all, the car wasn't running, taking it apart wasn't going to make it run any worse.
In my car they found rat nests. Rat nest-s.
Rats had chewed through wires. Wires that were connected to the dashboard sensors. The sensors that make the lights go on on to let you know "Hey, your oil is low!" Or, "I could sure go for some transmission fluid." Or, "Were you aware that your airbag isn't working?" Rats are not covered in my warranty.
As horrible as all that was, that wasn't reason enough for my car to stop running. They finally found the problem on Thursday, the 19th. Last time I got my oil changed, I went to a chain that specializes in doing all the work in a jiffy. (Now I'm not saying that it was Jiffy Lube.) When they changed my oil, they changed my air filter, like they should. However, when they replaced the cover for my air filter, they pinched a wire. This wire was pinched under the cover where it rubbed and wore down the insulation around the wire. Suddenly there is a naked wire in my engine. And my modest car just can't handle that. Not Jiffy Lube's inadequacy's aren't covered in my warranty either.
It's been 14 days since my car had it's nervous breakdown. And the car shop has ordered the wrong part twice and the only tech who can work on my car has called in sick several times.
Luckily ridiculously long periods of waiting is covered by my warranty.