That might work in a one-party consent state but the passenger who never interacts with the touch screen in a two-party consent state would have a stronger case. Though, even then, gathering the evidence that they're violating such laws would probably be a pretty big hurdle.
Two party consent is for wire tapping, eg, monitoring electronic communications. If they're monitoring meat-space communications, it's possible that wire tapping laws don't apply in the first place in most jurisdictions. Like an Alexa device.
Some two party laws don't specify that it has to be over the wire. They refers to recording a conversation where there is an expectation of privacy. The cabin of a private car certainly falls under that.
