It missed us by 9 days

I've been a blacksmith for almost 20 years and got starter at a historical village near Chicago.  The Idea that we would potentially be set back, though I don't think it would be permanent, and rely on antebellum technology even for one or two harvests terrifies me.  In the US/Canada which has some of the most productive farm land on Earth, we would struggle greatly to bring in ¼ of the harvest without automation  and computers.  None of the computerised equipment will work including our cars and trucks, no tractors etc.  Only purely mechanical equipment will work, and there aren't many blacksmiths even with it's increased popularity today.