Bank On It

I was at the bank yesterday and this sign was posted (word for word):

We are unable to issue cashiers checks and money orders at this time due to temporary printer disfunction.

We apologize for inconvenience.

First, isn't it "cashier's check"? Second, "dysfunction" is the preferred spelling. Third, I really doubt the printer was dysfunctional, even temporarily. Finally, note they're apologizing not for the particular inconvenience, but inconvenience as a concept.