Ok I've learned a ton about Chargepoint Flex - More than I ever thought I needed to - and I can share my updates here in case they help others.
So I called Chargepoint support and the support dude confirmed what @Voltz
said - If I reset to factory defaults it'll come back at 16 amps. However, CP's documentation seems to be behind the state of the app - There was no option to factory default the thing, just to remove from my account, so that's what I did. I then plugged in the truck and tripped the breaker.
After everything came back online the CP was now flashing white. So I figured hey, it had to reboot to reset itself and I plugged it in again... And tripped the breaker again. Since I couldn't find much in the way of resetting I figured I'd try activating the CP one more time. It went through the setup wizard and asked if I was plugged in or hardwired (I'm plugged in). The plug-in only had two choices for amperage, 40 and 48. But if I went back and told it I was hardwired I had way more options, similar to what's outlined in this table
. I set it to the 20 amp setting and shazam, I was able to charge without issue! I think I'll see about re-setting it with the 24A setting since I do have a 30A breaker.
Thanks for all the help! I never would have figured this out without you guys. I'm in the middle of moving to a new place and hopefully I'll get that place wired appropriately. But this is a great alternative to the dryer plug till then! On a side note it sucks that Ford doesn't yet have a way to see how much amperage it's pulling, but I assume that eventually their software will be on par with Tesla's.