Well, I started a new file (~180 down the toilet, but whatever) and even deleted my installed data and reinstalled the game in an effort to try and avoid the game-breaking bugs. I've been using the save exploit to make Chet in Goodsprings reload his inventory very fast, and I've been buying Caravan Cards from him...and they're not showing up in my inventory. I have yet to play Caravan (Ringo was sadly killed for the sake of 13 more perks), so they might just be disappearing, but I'm not sure. I'll have to test when I get to Primm.
Something worth noting is that the game seems to avoid requesting to install patch 1.01 and jumps straight to 1.02, and even matches the 20 MB size of the second patch. So could it be possible that the two patches were actually conflicting with each other???
Edit: Something else I've noticed is that Ammo Boxes seem to be fixed as well. They will ALWAYS be opened upon purchase, and the amount you purchased will ALWAYS be recieved as well.