So I messaged the 41.22 support team and was able to get some answers. Unfortunately, the "relays" for both the fuel pump and starter are just 30A slotted M case fuses. The only box style relay (in my truck at least) was the power train control module. I asked them about a fuse-style kill switch and this is the response I got:
So it looks like most of us newer gens (I'm assuming) will be SOL til they make something that accommodates fuses. With that being said, it looks like those with 2017s and older might have better luck. Just check their compatibility chart on their website.