we have 3 rimes were closed I work here holiday floor waxing and system update
The only time I remember they closed like that was for the setting up of the new cash register systems with the card sliding machines or whatever maybe that's what they were doing
They occasionally close for major store reconfiguration or floor work.
They will usually post Holiday hours, it is not uncommon for grocery stores to close early on Christmas Eve and close all day on Christmas. There is an option to suggest an edit on hours, it is possible no one else added the change? Otherwise, I'm not sure what the protocol would be for a store needing to close. I'm sure the experience was unpleasant, I do hope you were able to find what you needed elsewhere.
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