MacBook - New MacBook - Locked myself out

I was trying out keyboard shortcuts and accidentally hit some key combination that resulted in weird behavior. Now, whenever I hit the keys: Command, Shift, Control, or Option, it would show a picture of it on the right hand side of the screen. Maybe some universal access? However, I could not get out of this mode and many keys would not work.

I closed my lid and since some keys do not work, I cannot log back in. Does anyone know how to shut this mode off? I'd really hate to do a hard reboot.