I'm not in the US, but isn't the Bay Area quite specifically very polluted, very densely populated, and has some weird geographical/meteorological quirk that makes it very hard to get air pollution to blow away?

So, the restrictions on incredibly stinky processes like spray painting cars that emit lots of VOCs and dust are somewhat reasonable?

Or to put it more crudely, isn't it a bit like putting up a big "NO FARTING" sign in a crowded room where the windows don't open, and then simply expecting people to understand that this is a place where they should not fart?