Why was there an extra lock screen that i have never seen before?

[AC Question]

I went to open my phone and there was an odd lock screen. It was a slide show in the background of birds and nature. It said in the middle "your phone is in silent mode and you might miss calls" with two options to click, the first in green "i dont want to miss calls" the second in red "thats okay". I click the first and it took my phone off silent. On the bottom it had my location and weather info and time and under that it said slide to unlock. I slid it and it opened the normal swipe to unlock screen then i put my passcode in. I can't get that screen to show up again and i cant find anything about t online. Anyone know what that was?

 

[gildedgrove]

This also just showed up for me. I see it every time I plug in or unplug my phone and the screen looks like the attached picture, but with rotating photos. I can't find any running services that look suspicious and I haven't downloaded anything new recently.

 

[gildedgrove]

Edit: it's peel remote!

Confirmed in this thread: http://forums.androidcentral.com/samsung-galaxy-note-4/777821-slide-unlock-screen-suddenly.html