Warm nails and a firetruck

So it like, snowed.
From the weather reports and bread aisle, there was some skeptical but tangible concern.
But it was nothing outside of bitter cold (which continues I should add).

Anywho, I noticed the nails or whatever on the rooftop below held some warmth.
And they made this pattern.
At least, I think so.
Heck, I could be wrong. But what else would do that?

In other snapshottery of the day, here’s the thing I picked up at the antique store,
an old metal firetruck: