This stunt is great for Boycott/Divestment/Sanctions folks though. Here in the US, many states require fealty to Israel in the form of promising you won’t boycott them if you want to do business with that state’s government. Now there’s an easy out: no one is boycotting Israel, they’re just avoiding the liability of Mossad intercepting and tampering with a shipment.
It would not hold up in court because the requirement to not boycott Israel is stronger for businesses than it is for individuals who want to contract with the state government.
There is a federal Office of Anti boycott Compliance that any employee of any company can tip off and have the company punished if it's believed they did not give a fair shake to an Israeli supplier or bidder of any kind.
Would that even hold up in court? Would be amazing at counteracting these unconstitutional laws. The biggest problem is that these laws are much easier to get passed then to get repealed. Because each repeal requires a long winded lawsuit that can sometime only get the law slightly altered.