Just see how Viktor Orban did it. He'd probably close the Dow on Black Monday, declare a national emergency at around 1,000 cases, militarise police forces to get ready for "possible rioting" and have them blockade stores to stop people from violating social distancing and help distribute aid and assist medical personnel, declare nationwide lockdown and activate contact after a few thousand more cases and generally overreact to the whole situation.
And when he does clean up COVID-19 (presumably with a small bump in approval ratings due to the quick, if heavy-handed, response), he'd throw down the lockdown, reopen the Dow and keep his emergency powers in case of rioting or a second wave.