Find some loophole in their T&C to terminate your account I guess. Similar to how mobile providers don’t like people actually using a lot of bandwidth on their „unlimited“ plans.

The question would be whether other brands share their SOC with CarPlay to do so?

But you don’t get this on any of your phones? Normally this occurs on all devices the account is linked to, when you login e.g. on a different device.

If these popups are not initiated by yourself, consider changing your password…