Update on Monday (secondhand from the facebook page) was that it was pretty much all clear, just a little bit of ice on the fireroads. I don’t know if it has changed since then. There has been a bit of rain around Dumfries since then- it depends if it has been cold enough in Ae for it to snow.
Shop and cafe should be open this week, but after that only Fri-Sun for the rest of January due to the bad weather over the last few months. Opening hours may have been reduced from 10-4pm which is why you might not get through despite it saying Mon-Fri 9-5pm on the website. If it is iced up then Mabie is only 20minutes away and was running pretty good on Sunday.