To the original poster, which SuperTarget were you shopping at?
There is one around here that the guy that makes the announcement of closing is hysterical.
AT 9:40 he starts with "the time is now 9:40 and your Orlando SuperTarget will be closing in 20 minutes, please bring your final purchases to the front of the store-
At 9:50 he will say something like there is 10 minutes left and that he will be passing out brooms to anyone that asks (or something like that) and that the store will be closing in 10 minutes
At 10 pm he will announce that the store is now closed and to please check out.
At 10:05 he says "the time is now 10:05 and the store is still closed" I can't remember exactly how he words it, but he says something about grabbing a few cleaning supplies on the way up to the front as he will be handing out the mop in 5 minutes.

I'm surprised he can say what he says without laughing.
It must work though as several people are hustling to the front at 10 pm!