Bad news is that between the live site map showing the chasers, tweets from other chasers who said they were in Mexico City, and Jeff Piotrowski's live feed it seems that there were a lot of chasers in major risk areas between the two. Jeff claimed to have been down there but barely made it out before storm surge and fallen trees blocked the way - and that was a bit before it got REALLY bad.
Hope others made it out or found places that held.