I have a 2014 chrysler 300. I work a lot and so have to sleep in my car somedays to get some sleep at all. Anyways, I went to sleep in my backseat today. As far as I know I did not leave any electronics on and car was powered off. When I awoke I unlocked the doors with my door unlock button on my driver's side door and got out. Didn't think anything because I do this 5 days a week. Now I don't know if it's a battery issue or what...my car will do absolutely nothing except allow me to pop the hood and the gas cap now.

That does sound like a battery issue. I would start there. Maybe one of the dome lights was on, maybe a belt got caught in the door....I've seen it happen and the person didn't even know it was pinched. Also, sorry to hear you're having to sleep in the back seat. Don't work yourself to death out there!

I know this might be a little late. Have had the same problem with a 2015. The key has to reconnect to the car. It is a security issue you have to take your key and walk 30 to 40 feet away then everything should work fine.