How does closing at 6 make things safer? Doesn't having less available time for people to come in condense foot traffic?

If you're worried, stay home

Closing early gives them more time to sanitize the store after everyone leaves so it can be ready for the next day

Call and ask the store what their current guidelines are is the best I can say

Before you say only a certain amount of people are let in the store at a time, how is having people stand in 105*f outside a good idea? No little old ladies passing out?