Since switching to the beta, quite often when I start my car which is connected via Bluetooth to my phone it switches to a call to myself. It shows a call connected to my name. No call is in progress on the phone and I can't disconnect the call. Trying to hang up from the call will reconnect immediately. This is a 2014 Camry
Only way to stop it is to either disable Bluetooth or reboot phone.
I've noticed the same thing in my car AND my galaxy buds. I've found a quick fix by dialing my voicemail while connected to the Bluetooth device, switching over the earpiece audio, then ending the call. This will stop the connection in the Car/ Bluetooth device.