exactly what I was talking about, and the situation is much worse 4 years later.Not personal experience but N+1 experience. I have a very close friend of mine who works in Hollywood, usually as an assistant to a producer or assistant to an executive producer. She has carried US$400.000 cash to Canada to pay the local team on a movie before with no problems. She was making a movie in Switzerland in 2018 and had some issues and needed to withdraw CHF50.000, so about the same amount of money, and even through ALL the details of the withdrawal was submitted to the bank prior to the withdrawal, was met at the bank and needed to answer some questions with the local prosecutor's office. They had all the same details and had made calls to all parties in the meantime. No matter. Took about another 48 hours to get the cash. Doubt things changed much since 2018.
There are a few smart prosecutors, but the majority are a big pain in the back and in general you don't want to ever go to the MP.