According to this article, two Navy Pilots received counseling for using their helicopters to rescue people trapped in New Orleans. After they dropped off the supplies that constituted their mission, the pilots used their H-3 helicopters to pick up 110 people stranded in the city.
"They were not reprimanded, they were counseled," points out civilian Public Affairs Officer Patrick Nichols. (Counseling is less severe than reprimand in the military, but is still corrective action.)
The problem wasn't that these pilots, one of whom was temporarily assigned to kennel duty, rescued the people. Rather, the problem was that they did not follow orders. Their Commander praised their actions, but then "reminded them their orders were to run water and other supplies" to three places in Mississippi.
One of the pilots did receive permission to return and continue saving people after he stopped to refuel.
What I get from this is that the pilots have to make sure that these stranded people must get supplies until they are able to be properly rescued. I love how bureaucracy works!