My BIL delivers propane and he said he stops at stores after he delivers to check what's in stock so he can't get a little here and a little there. He said it's working for him so far.I heard someone at the store saying exactly this. She & hubs work full time still, she was caught off guard by all of this and they have 3 kids and her MIL at home. They're having to shop on weekends and the MIL tries to get stuff during the week they couldn't find.
Where I live there's 3 grocery stores to choose from, but most are out of the same things.