I happen to be walking in the garage last night and I noticed that our newest Tesla (2018 MS) was blinking its headlights. Noone was controlling via the app (late night) so I was a little worried the car was being hacked? So went in and checked out security camera footage, and apparently it is blinking in Morse Code, first the right headlight "A" and then left headlight "A". Any hacker groups out there with initials AA? Or is this a known regression of Tesla software (back in early days ~2012/2013 Teslas used to be "possessed" when parked, especially while applying updates (and no, the blinking MS was not applying updates at the time). Here is a video of this. Any ideas?