Still won't work. The bureaucracy to support them is unwieldy, the impossibility of being surgical enough is daunting. Pricing in the real world must stay dynamic because real supply and demand changes happen all the time for valid reasons.
Let's think about what has changed here and then work back. Why is price gouging a growing issue now after 250 years of the republic? The increase in corporate pricing power we are experiencing in the US is due almost completely to the growth of market monopoly power. So don't attack the symptom, attack the cause. The way to go is to control businesses' pricing power.
The government can help keep prices down in an economy and do it effectively but not by direct controls. You do it setting the playing field - insuring competition via tax and M&A law/rules, subsidizing infrastructure, subsidizing new business formation. For commodities the Gov can maintain supply reserves like they do for oil that can moderate market shocks. Even direct investment subsidies are better than attempts at direct price control.
And I will beat the dead horse again - why is the business playing field in the US more distorted than ever? - because we have a politics distorted by business money - Citizen's United.
So along that line, what makes anyone believe that a government already bought and paid for by corporations is actually going to do any effective price regulation even if it somehow could come with a workable system to do it? Without political reform first, it would become the biggest rent seek in history.