This proposal would ban the construction of office cafeterias so if you're just serving free catered food (which is what most small and medium companies do, I'd guess) it's fine.
Yeah, the proposed legislation mentioned in the article in San Francisco just banning the construction of onsite cafeterias seems to recognize this at least.
That's how I am reading it. And if their aim is to drum up foot traffic on streets to stimulate local business, I don't think that violates the spirit of the legislation.