is there some sort of way to request an area for 2G to NOT shut down?

I know of at least once place on AT&T/Firstnet that still has 3G, and at least one location on T-Mobile that is 2G GPRS only.  

Unless I'm mistaken, 2G on T-Mobile will go dark in April 2024.  AT&T was supposed to have killed on 3G, but I suspect there are a 'few' exceptions, and they are running FirstNet.