As the total number of coronavirus infections in the Washington region topped 90,000 Sunday and fatalities hit 3,880, a one-day spike in the District of Columbia's numbers raised questions about whether it can begin reopening as expected Friday. And social media images of a crowded Ocean City, Maryland, boardwalk and an unmasked Virginia governor mingling with beachgoers had many wondering whether safety guidelines meant to contain the disease were being taken seriously enough.