People driving cars line up to buy food during the Drive-Thru Food Truck Festival in Abbotsford, Canada, June 28, 2020. The drive-thru model allows customers to buy food without leaving their vehicles in order to keep a safe distance during the COVID-19 pandemic. (Photo by Liang Sen/Xinhua)

A staff member of a food truck delivers food to a customer during the Drive-Thru Food Truck Festival in Abbotsford, Canada, June 28, 2020. The drive-thru model allows customers to buy food without leaving their vehicles in order to keep a safe distance during the COVID-19 pandemic. (Photo by Liang Sen/Xinhua)

A staff member of a food truck delivers ice-creams to a customer during the Drive-Thru Food Truck Festival in Abbotsford, Canada, June 28, 2020. The drive-thru model allows customers to buy food without leaving their vehicles in order to keep a safe distance during the COVID-19 pandemic. (Photo by Liang Sen/Xinhua)