Had a nice outing with my little, new-to-me Celestron C90. Nice views of
Saturn around 9:15 or so, fighting the moonshine. Spent a long while
with a 15mm and 9mm eyepieces and had 15 or 20 seconds of spectacular
viewing with the 6mm. Enjoyed the moon for a long while, even took a
couple of pictures with an ancient Canon FTb and some B+W film that my
son was using in his photography class. He'll be surprized when he
develops them! Lots of fun until a coyote howled nearby and I decided to
pack it in.(I was about a 1/4 mile off the road in a clearcut- thanks
for the 4-wheel drive!)

Anyway, I live in Midcoast Maine and it was about 28 degrees when I
packed up and headed home.
My question: Should I do anything special to the scope and eyepieces
when I bring them into the house? I have the scope with the diagonal in
facing down and the lens cover off but a dust cover over the whole
scope. The eyepieces are uncapped and under a loose cover to keep dust
away...
How dangerous is moisture/condensation to all of this?

Never really crossed my mind until I walked into the house.