Hello all. I am a graduate of this university and I work there every day. This is highly amusing, but it’s also as fake as Jordan’s tits. There is no University of Nottingham in America that would use the word “elevator” or the spelling “sterilized” – there is one in Malaysia but this is still run on UK English, being a UK-based institution. Nor would any official sign capitalise words mid-sentence for no reason.
A student may have set it up as a joke (and what a hilarious whiz, and safer than climbing the Portland Tower or attempting to swim the Trent at the bottom of the campus while drunk), or it might be shooped in its entirety, but it is most certainly not a genuine official sign from the University of Nottingham.