The above is a win because:
– they didn’t ask me anything about the amount of bitcoin I might have
– they didn’t ask to use the private key to unlock the wallet and declare the money
– they basically acknowledged that bitcoin is something else and respected my privacy
This is how precedents get set and customs are created.
But obviously, traveling with a metal backup around your neck is a bad idea. For flights, it’s a much better idea to take a notebook and write on paper.
Next stop: Paris, Charles de Gaulle. 
