While I'm against requiring vaccinations at pretty much every level, at this point pretty much everyone has had the opportunity get vaccinated. I know there are a few exceptions, but I can't imagine that they are statistically significant. The same goes for those who can't be vaccinated for some medical reason.
I'd bet my house that it won't happen in CA. But if you get The Rona at this point, its on you, and no way should you get worker's comp unless you can prove proof of vaccination or positive immunity test.
So what procedures do you follow when you arrest someone? I assume you are transporting in a car. Do you force the arrestee wear a mask? I wouldn't think that would be possible.