[color:"blue"][/color]I just received an updated confirmation from Sandcastle for our stay in March. It says in part:

[color:"blue"]Effective October 15, 2015, No large quantities of alcoholic beverages purchased off property, for PROVISIONING PURPOSES (i.e. cases of beer, liquor and wine) will be permitted in the guest rooms/cottages. If you’re interested in purchasing beer/liquor from Sandcastle Hotel to be kept in your room please contact us prior to your arrival.
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It sounds to me like reasonable amounts for self-consumption will not cause a problem.