Strange empty notification today?

This morning when I started the car and got going, I got a automated "notification" indication on the nav screen but there was no content behind it. I didn't do anything unusual (like send a push from google maps) last night or this morning.

The behavior was like when you click on one of the information feeds (like the google push) and usually the voice would come on and speak the contents, but there was only silence and a 1/1 indication on the screen.

Anyone get this today as well? I was wondering if corporate was trying to send us all a notification but botched it somehow...

I didn't get one today, but I've gotten that from time to time (pretty rare though) and got one the other day.