I went with my wife and son to the Albany “Winter Festival” yesterday, and we saw a collection of kid-friendly acts and some fireworks. Some of those acts were in the Crown Plaza Hotel downtown; and as we walked through the building, we came across the following glass door leading from an indoor stairway to an outside brick “courtyard” sort of area:
So, to us on the inside, the door says “This is not an exit”. The those on the outside, it says “Exit only”. So is it an exit, or not? If not, what is it?