That sucks! You should sue their a** and you should have called 911 and made a report on the incident so they can dig deeper onto what happened. It could be a recall! You're lucky you didn't get hurt! I'd say sue them!
You just scared me with the dealers closing because of poor sales, the one near my house also closed down a few months ago. I've been thinking about whether keeping my car or not for the past few days
Good luck.