Come on, man. Not sure why there's so much finger pointing now. Let's all be happy this thing is slowly coming to an end and hopefully things can eventually get back to normal. Trump declared a national emergency on March 19th and invoked the Stafford Act. It was part of the federal policy to keep people home, limit public gatherings, close schools and shut down businesses in affected areas. Governors and mayors responded accordingly.
Read the President's Covid 19 Guidelines, including the small print at the bottom.
Again, where in the CDC memo does it require nail salons, hair salons, small businesses with less than 10 employees...etc. to close. None of that was mandated or driven by the CDC.