Fool me once, fool me twice......fool me 4 times. ...

Fool me once, fool me twice......fool me 4 times. My husband and I have come 1 hour prior to closing (or more) and each time they are "sold out of ice cream." 15 minutes prior to close, I can understand. I've worked in the industry and know how much work cleaning the ice cream machine can take... But - The 3900 s 700 e location has no issue with this - call them up and take notes on how they close down the shop?