Given that for the most part, our food supply chain is not composed entirely of 70+ year old people who will all simultaneously get the virus, while it's certainly not just "another day at the office" to keep food supplies running, it's not necessarily going to be as hard as your intuition may say, either. Especially if social distancing works and slows the infection rate, even the worst case scenario here is far from the metaphorical bodies in the streets and everyone lying at home in their beds, sick. On a day-to-day basis, it's more like a really bad flu season than "one day, the entire town just died".
The non-essential economy is looking at a kick in the face, but I'm not too worried about the essential economy. In the long run, I think we're going to individually remember this as an annoyance, not a catastrophe. There are some other social changes that may occur, but they're mostly going to be accounted as "social changes that were pretty much on track to happen anyhow, the Coronavirus just precipitated them a bit earlier and more suddenly".