Whole Foods: Starting on Wednesday, March 18, all Whole Foods Market stores in the U.S. and Canada will service customers who are 60 and older/or immune system compromised one hour before opening to the general public, under the new adjusted hours posted on the store’s web page.
Whole Foods Market's response to COVID-19

Target: Starting on Wednesday, March 18, Target will reserve the first hour of shopping each Wednesday at stores nationwide for vulnerable guests – including elderly and those with underlying health concerns.
Target's coronavirus response

(example: if a store’s new hours are 9am-8pm, customers who are 60+ can shop starting at 8am.)