I had plans for the morning other than pitched battle.
So much for planning.
Update, 2:53 p.m.: Found a line across the garage floor. This is excellent news, as it means that they are probably not nesting in the walls, just passing through them, and if I can wipe out the trail through the garage and across the front of the house, I can have this fight somewhere other than the pantry.
This is something I miss about the floating house -- very few insect problems.