is there a social distancing law in place where you are? if so can you not tell people to wait outside and control how many people enter the store... and if it is privately owned can you not do this anyway?

Probably is a social distancing law, or maybe just recommendations. But there's stores where I am that no one cares anymore. So even if you're there for essentials, the people in line who chose to practically spoon you while waiting still exist and those who are careful get the short end of the stick.