I've been in that park, though it is quite a drive from San Diego and Northridge. Saw a deer (a buck, seemed kinda skinny) just walking around humans at the Miwok museum. I think it might've almost charged at me since I was being careless and recording it from the front, but nah, he was chill. The museum was very interesting. Bows, knapping, cordage making.. Didn't get a chance to see larger giant sequoia though.
Hope all goes well.