As QB pointed out, I think the employees or the owner might not qualify (if I'm reading your post correctly, but I'm not sure of the exact rules the CA had).  Many of these FAQs were written well after the shut-down.

If the government shut down the actual business itself, there is no work available, and therefore no sick leave ("may not take paid sick leave ... if your employer does not have work for you as a result of a shelter-in-place or a stay-at-home order") 

If the business was allowed to be open, it gets more confusing and more of a "gray area", especially for a self-employed person.

You may have gotten it already, but I did send you an email that is loosely based on this question you posted.