Nathan, sounds like an exciting trip. I have been in those situations on several occasions, all in the pre SPOT and HAM era, for me at least. Sounds like the bases were well covered.
There is usually very little need to speak with emergency aircraft if they have you in their sight. No need to help them land, find a landing site or give wind direction or any of that. As you know they can and will guide ground crews in if need be. The most important part of all of this is getting the ball rolling which you did, and did fast.
If their is no cell reception I simply keep a list of all repeaters in the area or that little book from HRO that has all the California repeater sites. Locally I have found the Catalina repeater to be very handy and since there is no PL you can dial it up and talk, 147.090 I have always had a answer when calling Catalina. It has worked from Los Padres to Orange County Mountains and the San Gabriels. I realise it wouldn't work for you where you were but I have a list of frequencies that work like that for the different areas I travel such as the Owens Valley, Death Valley and the Saline and Eureka Valley.
Sounds like your adventure went as fast and a smooth as it could have gone. Good job.