Another article on mask wearing and a chart with models showing if you can get about 80% of the population to wear masks with 60% effectiveness (achievable with cloth) you can bring R0 to below 1 which is when a virus spread can die out and be halted. Here for sure I think you can get that compliance not sure about other parts of the country.
From the article:
Models show that if 80 percent of people wear masks that are 60 percent effective,
easily achievable with cloth, we can get to an effective R0 of less than one. That’s enough to halt the spread of the disease. Many countries already have more than 80 percent of their population wearing masks in public, including Hong Kong, where most stores deny entry to unmasked customers, and the more than 30 countries that legally require masks in public spaces, such as Israel, Singapore, and the Czech Republic. Mask use in combination with physical distancing is even more powerful.
For example, in Hong Kong, only four confirmed deaths due to COVID-19 have been recorded since the beginning of the pandemic, despite high density, mass transportation, and proximity to Wuhan. Hong Kong’s health authorities
credit their citizens’ near-universal mask-wearing as a key factor (surveys show
almost 100 percent voluntary compliance). Similarly, Taiwan ramped up
mask production early on and distributed masks to the population, mandating their use in public transit and recommending their use in other public places—a recommendation that
has been widely complied with. The country continues to function fully, and their schools have been open since the end of February, while their death total remains very low, at only six. In the Czech Republic, masks were not used during the initial outbreak, but after a grassroots campaign led to a government mandate on March 18, masks in public became ubiquitous. The results took a while to be reflected in
the official statistics: The first five days of April still saw an average of 257 new cases and nine deaths per day, but the most recent five days of data show an average of 120 new cases and five deaths per day. Of course, we can’t know for sure to what degree these success stories are because of masks, but we do know that in every region that has adopted widespread mask-wearing, case and death rates have been reduced within a few weeks.
https://amp.theatlantic.com/amp/article/610336/