NorthJersey.comView CommentsNew Jersey's supermarkets became ground zero in March as a sign of how life changed because of the coronavirus. As one of the few kinds of businesses still open, there have been chaotic crowds, empty shelves and social distancing measures. Some of those changes may not be going away soon, if at all.Chain supermarkets and mom-and-pop shops are facing similar problems in the wake of the pandemic, but smaller stores are dealing with slim profit margins.Story continues below the gallery. Social distancing, plexiglass barriers at checkouts and...…NorthJersey.comView CommentsNew Jersey's supermarkets became ground zero in March as a sign of how life changed because of the coronavirus. As one of the few kinds of businesses still open, there have been chaotic crowds, empty shelves and social distancing measures. Some of those changes may not be going away soon, if at all.Chain supermarkets and mom-and-pop shops are facing similar problems in the wake of the pandemic, but smaller stores are dealing with slim profit margins.Story continues below the gallery. Social distancing, plexiglass barriers at checkouts and...WW…