One way to figure out what network traffic is being emitted is to Faraday the transmitter, then setup a receiver/decoding rig/false endpoint within said rig. I

One way to figure out what network traffic is being emitted is to Faraday the transmitter, then setup a receiver/decoding rig/false endpoint within said rig. I'd start by essentially cutting off connectivity and seeing what breaks to determine what functionality is highly dependent on net access. Then you start decoding the protocols. Odds are video isn't necessarily being sent realtime, but is being buffered; though Tesla, as I understand were madmen enough to go the route of straight up turning the bloody thing into a rolling smartphone on wheels. Most things with Lead-Acud batteries are probably not going to dedicate the charge to any type of long-term recording rig. Certainly not to the degree of a li-ion tray on wheels. Lexus owners at a minimum will lose their Remote functionality, but there may also be some clock related weirdness I haven't had a chance to look into, but have heard stories from customers about.