NullException
Member
As of the currently released 8.0 build (2.36.108), the release notes do not mention either feature, so I'd say that these features are not yet implemented in any form. I would not trust the car to navigate an exit at this point until the release notes say it's supported.
Whilst I think your stance is very sensible, the Upgrading Autopilot: Seeing the World in Radar post on tesla.com, does include this:
- Will take highway exit if indicator on (8.0) or if nav system active (8.1). Available in the United States initially