I don't know how effective this was, but Israel did exactly this: https://techcrunch.com/2020/03/18/israel-passes-emergency-law-to-use-mobile-data-for-covid-19-

I don't know how effective this was, but Israel did exactly this: https://techcrunch.com/2020/03/18/israel-passes-emergency-law-to-use-mobile-data-for-covid-19-contact-tracing/ https://techcrunch.com/2020/03/18/israel-passes-emergency-la... US public institutions seem frankly sclerotic. The fact that the government has or has not done something provides almost no signal on whether something is possible or not.