Bilgemaster, take if from me. Those MREs will last a long longer than their expiration date. I still have some from the Y2K scare and they still taste fine when I use them during a camping trip.
Around here (SF Bay Area), when the TP runs out at the stores, people will just buy anything that remains the shelves. Even the meat, paper towels, frozen dinners, tuna, candy bars and dog and cat food is all gone. They don't care what it is - just gotta have it. And while they are doing that, everything gets touched and the required 6' stay away from anyone else requirement is cut back to 6" in the press to grab the last item on the shelves and stand in the long line at the checkout register.
When my dad was growing up in the Missouri Ozarks, they couldn't afford TP, so they used pages from the free Sears Roebuck catalog, which arrived every 6 months, and when those pages ran out it was back to corn cobs in the outhouse. Those were tough days.