I am a frequent user of the Android Auto version of Spotify (connect with a Galaxy S8 using Spotify Beta) and the Windows 10 Desktop Spotify client.  Often when I use the Windows client, I will play to other devices (computers or Amazon Echos) via Spotify/not bluetooth.  After doing this, often the next time I get in the car and try to use Spotify, it acts like it is playing but nothing comes out of the car speakers.  I've witnessed that it continues to play on my most recently paired device and I cannot resolve the situation unless I unplug the phone, open Spotify, and disconnect the paired device.

Expectation: I would like Spotify, if launched in Android Auto and starting to play, to automatically disconnect from any paired devices and only play locally (on my car speakers).