You've got me to wondering where can one find range maps for California tarantula species? I'm in contact with people who work in the BLM Clear Creek Management Area. They may have a better idea of how common this tarantula is in that area, and perhaps in locales south as well. They also might be willing to help obtain specimens if there is someone interested in and set up to pursue genetic/biogeographical studies of this species.

I just moved to a little town called Homeland, California these spiders are all over out here they walk across the road at night, my kids have even caught a couple of them

I'd have to find the name and a link, but there was someone that I recall reading about a few months to a year ago that was asking for US Native Aphonopelmas to be sent to him along with coordinates and photo/description of habitat where they were collected, so he could do genetic studies and try to clean the aphonopelma taxonomy up a bit.

I'll have to email him and see if he is still doing the study.

Let me know if you dig up the Aphonopelma researcher's name & contact info, and I'll pass it on. Many BLM folks I know are very enthusiastic and accommodating in encouraging and facilitating good scientific research --- often provides a basis for more wisely managing our public lands. And they manage a huge amount of our (thankfully publicly accessible!) land, especially in the western US.