This is on the course for the NOLA 70.3, I'm guessing they were pre-riding for Sunday's race.
http://www.wwltv.com/news/Bicyclists-struck-by-car-on-Chef-Highway-injuring-at-least-2-254921311.html
http://www.wwltv.com/news/Bicyclists-struck-by-car-on-Chef-Highway-injuring-at-least-2-254921311.html