That svcks! However, I'm guessing that you are going to lose your progress. I lost 12 hours of progress on FO:NV with that damned Monorail bug, plus another hour trying to find a save that was before I did (whatever it was that was bugged). I'm hoping that this type of scenario is not the case for you and not for FO4, but I don't hold much hope. I try to save every 30 minutes at most due to previous issues with Bethesda games.
Can you guys confirm that you have the title update for the game? Go into the Settings menu and you should see that you're on v 1.1.21.
Also, with the elevator issue, have you let the game sit for 2-3 minutes to see if it eventually loads?
http://www.gamesas.com/topic/1547302-what-to-do-if-you-find-yourself-stuck-in-an-elevator/
Read my other thread on what to do if you find yourself stuck in an elevator. It's worked for me and several others as well.