Love the photos of the frost, not sure what you blokes are worried about.
Spent a lifetime living with the stuff, freezing and cracking pipes, buggering up hot water heaters and solar panels etc. Chips in windscreens becoming cracks over night, are they were the days.
Camping is always fun in those temps, working in the cold can be hard.
Must say though that it has been cold here in Brissy the last few days I must be getting soft.