The installation crew just left. Had them spray the area above the garage. It had never had insulation, but really never had a need for it.
He had me come up to the attic, and pointed out a few spots over the main house that needs touched up.
I'll have them back out, and also do a drill and fill on the garage walls.
I run the mini-split heater in the winter. That will help keep it nice and toasty out there.