What is This System Trying to Do?

When I went to bed on Wednesday night, I hoped I'd done enough to deal with an ant invasion into our home. I'd anticipated it. We live within the jurisdiction of a home owners association and periodically, when ant populations begin to surge, they lay down insecticide. Whenever they do this, within 30 minutes, the ants come inside. Of course, they're escaping the tragedy and my home, being…