It's worth noting that food costs in restaurants is only a part of the puzzle. Rent is a huge part (especially in SF/SV) then there's labour, decor etc. And I'm guessing you are not eating "local" so assume some serious transport and energy cost.
It's interesting that in a money-driven culture like the US you see it as the role of govt to reduce prices. Surely pricing isn't govt responsibility? That's just the free market in action.
Also, be careful about wanting deflation - that's much worse than inflation (see Japan in the 80s and 90s). Inflation promotes spending, which increases "the economy". Deflation encourages not-spending, so you'll end up going out even less.
Of course nothing compares to home-cooked, using quality local ingredients. That's ultimately the solution to cheaper, better, healthier food. There are some restaurant dishes I can no longer order out because it's always a disappointment, I make better at home.
Looking to the govt to somehow change pricing for, well everything, that goes into determining restaurant pricing seems to be "unamerican" (in the culture sense, not patriotic sense.) Restaurants are just part of a free-market economy, just like everything else.
So I'm not really sure what govt policy you are assuming is to blame for high prices? Or what policy they should take? Maybe raise taxes to reduce consumer spending to lower demand?