Parents stocked up on arts and crafts supplies, knowing their children would be home from school for weeks. Families sought out the damp beauty of the Huntington Gardens in San Marino and the boardwalk in Santa Monica. Couples packed liquor stores and pot shops to, as one Highland Park customer put it, “take the edge off all this craziness.” And people lined up to buy guns — fearing that today’s public health emergency might turn into tomorrow’s broader civil breakdown.