UPS on multiple occasion would lie on their tracking status that they tried delivery even though some one was home the whole day and no delivery came by or even a notice is left.
In addition the subsequent tries, the agent would just came by to leave the delivery notice without even knocking the on the door/door bell to attempt delivery.
Many times its required to chase them down because looking out the window saw the agent walking toward the house with just a notice label.
attempts to get the agent's name and number would be met with disregard, the agent would quickly drive off.
Its a definite attempt to prevent charges due to 2nd day delivery promises by UPS.