Diamond Shamrock

So i need to use the bathroom the door was locked the lady saw mw waiting. I walked up to the counter and ask if thwre was a key or something or if someone was just in there . She says no it's out of order... thats fine... but why did she let me stand there waiting.. long atory shortno sale... there was no sign... next time put a sign on the door. It really just lloks like this store doesnt carw about the customer and i bet the bathroom works toy know the employee has to pee sometime... thanks for nothing