This already happens with Nespresso coffee machines (they have an SIM that connects to the Internet, whether you want it or not). That day is already yesterday.
Wow, they sure do. Page 29 of the user guide for the Nespresso Zenius says -
This coffee machine is equipped with M2M (Machine to Machine) techology which may be activated in due time with your agreement.
Thanks to a SIM card already integrated in the machine, such network connections will offer new services (subject to further terms and conditions) to its customers and improve the after sales process by automatically communicating machine troubleshooting / diagnostics to our Customer Relationship Centre (depending on country requirements and specificities).
What a time to be alive. This should be disclosed on the front page of the manual and not hidden in the smallprint. And it should come with instructions on how to disable it with a physical switch.
If that's the case then it cannot be used in any place/location where there is no signal.
If so, then there would be hell to pay the first time if happened. If it works sans connection, then do what I've said elsewwhere and that's to cut or short out the antenna lead.
Removing the SIM may be deemed provocative by the manufacturer, if there's no signal reception then that's a different matter (the user can't be blamed).
doubtful. I'm sure it will refuse to work if it can't talk to home base, and that home base will have some sort of certificate pinning so only their servers can authorize it do make the coffee.