Anyone know how this relates to some states' two-party-consent laws?

E.g., suppose person A is carrying a smart phone, and has an apparently private conversation with person B.

Is person A civilly and/or criminally liable for allowing his cell phone to record the conversation?

And, for example, if Cox Media Group made commercial use of that secret recording, could they be liable because they had no good reason to believe all parties consented to the recording?