The probability it actually triggers anything is virtually zero. You say as much in your other comment. Driving a friend to a surprise party would be far more

The probability it actually triggers anything is virtually zero. You say as much in your other comment. Driving a friend to a surprise party would be far more dangerous on multiple levels. Life is full of risk, and if you minimize it to the maximum extent possible it's quite boring. Obviously there's some things you don't joke about, such as presidential security, inciting panic in public places, joking about terrorism in an airport, unsafe pranks on strangers, et cetera. That's all common sense. Adding a bunch of suspicious crap to the cart and looking up a flight on your friend's unsecured voice assistant is more akin to two people making a campy NSA joke during a private chat session. The latter happens all the time, no one cares. Granted, if your friend is a Syrian national living in the U.S. on a temporary visa then I might agree with you. :)