Thanks for the heads-up, Jeremy. I found that they've updated their webpage and confirmed that they are, indeed, open over the road and are renovating the main store: http://lagganstores.co.uk/

I'm intrigued to learn more about the "snaky bits" that they sell, but I'd probably eat anything after a few days of instant pasta.

Great news. I passed spent a night nearby in 2012 and was very grateful not only for fresh supplies but also as they took a parcel in for me.