I too spent the day awaiting a UPS delivery and kept checking the tracking information throughout the day. I did not leave my house.
I did not even leave the front room. I continuously looked out the window and checked my porch. UPS never came. However, when I again checked the tracking information at 8:01pm--just after the stated delivery hours had closed--I saw that the driver or someone at UPS had logged in a false statement of attempted delivery less than half an hour before, at 7:35pm.
I WAS SITTING ON MY COUCH ANXIOUSLY AWAITING DELIVERY AT 7:35PM. I am outraged that UPS has simply lied about this delivery attempt, wasting my time and defrauding the company from which I ordered my goods of its fee for guaranteed delivery within two days.