Ok, didn't see that. NOT the way I would do things though, I'd have my cash in a nationwide accessible bank like Chase, Wells, BoA, or the like. THEN, when buying cars, take it out a portion at a time at each city. As much for SAFETY, than worried about crooked cops. Imagine if your car got stolen while you were at 7-11 or a restaurant eating, or a hotel sleeping?! Goodbye $20k.
But like I said, agree it is 100% his right (no matter how stupid) to carry $100k across the country if he wants, that is true. Cops/DEA/HLS are definitely taking their powers too far, in sacrifice of our citizen's liberties.