Here is the list of stations operating near Orange County
http://www.findu.com/cgi-bin/map-near.cgi?zip=92865

Here's a message from a guy in Orange County.
Tells you when it was sent, altitude, speed, direction of travel (I forgot this earlier) and his simple message, "En Route" (you try putting a message in with only a dial to scroll through the alphabet and a button to select that letter).
http://www.findu.com/cgi-bin/find.cgi?KG6VNR-10
Click on his vehicle icon for additional detail.

Note: You can pre-set messages in your radio using a computer ahead of time. I like "En Route," "Broke Down" "Break/Food" and a few others; typical messages when I'm traveling in my [color:"blue"]Isuzu BlueMigo[/color] (hopefully not the broke down; that's a just-in-case). But they can be much longer.

For some OC guys who like the messaging (and probably have a keyboard) see this text message exchange. (and again; all ham communcation is free and not only nationwide, but world-wide if you get a good enough bounce or hit a satellite, or if you hit someone who set up a radio to internet back to radio relay across the ocean)

Here's what's going on around Moab on the APRS band.

Scroll down and this is a weather station
CW4541 __ . __ ** __ 38.02750 __ -109.12250 __ 38.4 __ 00:00:15:25
Click on the name for station details & raw data packet.
Click on the ** for the weather details
(On that web page, all names/**'s are clickable)