There were about 4 of them but I think there is only one now stationed at Carson CA, just outside LA.
They're very common here covering sporting events.
It must have been a slow sports day because here it is covering me riding my bike on the beach bike path..lol
Some info on them.....https://www.timeout.com/los-angeles/blog/the-last-of-goodyears-blimps-has-been-retired-031417