eyeuse2badub
People are not buying that much stuff to prep for a 14 day quarantine. They are preparing for much worse than that, which is entirely possible.
Heck, CDC is directly telling everyone to stay home and not go in grocery stores for 15 days, even if they're not sick. This site says 'stock up' multiple times, and has for several weeks. I check this page every day: https://www.cdc.gov/coronavirus/2019-ncov/specific-groups/high-risk-complications.html