First of all, as a resident of California, thank you SO much for what you do. We were having a blackout yesterday down here in the southland or I would have answered you.
Two products I can recommend highly are Lara Bars (pure fruit and nuts, no grains or added sugar) and Tanka Bites (bison mixed with cranberries also unsweetened with no chemicals etc.) I took a bunch of those with me when I climbed Kilimangaro recently and they are some of the best compact yet Primal energy sources around. I think it is very important that you firefighters are given nutrition that will stay with you not leave you with a sugar crash after eating.
Again, thank you.