IIRC, that was reported (probably a separate incident) on day one of SuperDome occupancy. There was also a report of a rape on the elevated freeway that Shep is reporting from, where the rape happened last night and was reported this morning.
IMO, NOLA is challenging in part because a significant fraction of the populace is thuggish.
Maybe this idea would help with deterring rapes.... :o
http://www.freerepublic.com/focus/f-news/1474146/posts