Pull Open?

So the store had been closed for basically an hour, with us workers focused on finishing the remaining closing tasks when I suddenly heard voices in the store.
I look up and see a couple in the store who were there to 'shop'

The problem.
We were already closed and had been for an hour.
Which meant the registers were all shut down for the night.
Which meant we couldn't sell anything to them.

So therefore the cashier apologized and sent them back out the door.

The main question though was...
How did they get in?

Well.
Apparently the cashier had turned off the automatic doors, but hadn't locked them as they were going to be leaving momentarily anyways.

And in that five minute time span...
The customers showed up.
And upon encountering the doors not opening for them.
Pulled them open and walked in.

*exhales*

Like...even the hours posted on the doors said we were closed.

So where was the common sense?
Like if the automatic doors don't automatically open that means we're not open.
That doesn't mean you pull the doors open.

*shakes head*

-Sarnic Dirchi