Thanks, stateboy, for giving us the inside scoop on how you folks worked it.
According to the ARRL EMERGENCY COMMUNICATION HANDBOOK (I haven't taken the CCE courses yet but plan to), we shouldn't just look to HAM-based solutions to emergency communications issues. That seems to be what is implied by some of the responses in this thread.
I worked Camp Gruber and the Red Cross office during the Katrina response. Yes, we did a good job and HAM radio fit the problem well. But I don't for a moment think that HAM radio was the only solution to the comm situation at the camp or between the camp and the ARC office.
If the HAM community here were truly the backbone of the official comms system, then wouldn't the city request HAM operators to locate at the fire stations for call dispatching rather than using the phone to call the stations and having PD go there for assignments when the TRS is down? While I'm sure the local public saftey officials respect and appreciate the HAM community, I doubt seriously that they look to us as being their first responders in a comm system failure.
It truly is a case of "When all else fails, HAM radio works." In the cases when all else hasn't failed I believe we should look beyond only HAM-based solutions. Having TGIDs on the TRS would be another communications path available, just as email, IM, telephones, fax machines or any other method would be. It could make it easier for the public service officials to communicate with HAM responders as it would be using the system they are already familiar with.
For example, having an ARES TGID would allow HAMS to monitor any emergency call-ups on our scanners watching the TRS rather than monitoring multiple HAM repeaters carrying non-emergency traffic. I suppose TAEMA could do a call-up that way using one of their TGIDs, but it would be nice to have an ARES-specific TGID for that. I keep my scanner on all night monitoring the emergency channels on the TRS. There's no way I'd monitor the HAM repeaters like that.
I'm glad to see that there are so many people wanting to discuss this.