Answer:
Yes, the response would have been different
Explanation:
The response to Hurricane Katrina was heavily criticized. There were accusation of racism, ignorance of the poor and the ordinary, hard-working citizens. New Orleans is a state where not many celebrities live, therefore the TV coverage of the disaster would have not been so attractive for many.
California, Hollywood, Long Island and New York are internationally known places where many rich people and celebrities live. These places would have gotten immediate media attention, generate great interest outside the USA and surely receive help faster and in a more efficient way. Nobody there would be stranded for days on their rooftops, they would be giving interviews instead and each of their movement would be big news. Politicians would do anything in their power to help them in order to be seen in good light for potential voters.