This is a stupid law. From its inception.
Any of the big movers of cash just use the banks.
It is fricken easy if you can afford a lawyer or two.
You move your cash to Cuba. Then you hire yourself or someone you want to give money to, to do something. (Do project X @ $1000/hour)
Or, give yourself a loan.
So, the law is meant to harass and terrorize little people.
And it will lead to confiscation of anything they say is inappropriate.
Things like: you have 1 bitcoin. Valued at $3,000 when you board the plane. And when you get there they say its worth $10,100 so, you just broke the law, confiscate everything and send you back.