Upvote:5
(if it works like in any other international airport)
When going thru security, your parents will have to put the laptop in a separate bin to pass xray for security scan.
So have your parent unbox it before going to the airport and have them carry it like any other electronic device (also have the power cord with them)
At best it passes like gazillion other electronic devices in US airport every year; at worse they ask to open it and power it to make certain it is a real computer.
In general, it is unwise to put electronics in checked luggage (mostly in regards to theft).