See the photo gallery, along with the description of the events, by Alvaro who was there.
The hurricane hit was not that bad in New Orleans and the French Quarter was virtually untouched. The picture that is especially compelling is the statue of Jesus behind St. Lois Cathedral, standing tall among the 100-year old oak trees fallen around it.
The ensuing flooding brought the city destruction and this is clearly seen in the pictures. Finally, there was no other way but out, and as soon as possible for the guy with the camera...
Update: The Kodak photo gallery is no longer available, it looks like Alvaro took the photos offline.
Picture source: Five Days with Katrina - Alvaro, 9/1/05