That was when I first realized elevation matters. I went skiing in that. Ended up driving 400 miles only to go to Wachusett (only place open) and nearly dying on the slopes. Not kidding lol.
In any case, I first noticed trees glazed on 93 by the Hooksett tolls where there is a little elevation. Down in Concord there was very little ice, but once I got out of Concord...it rapidly built up. Didn't even bother going to Gunstock as roads were impassable.