Ran into the same issue with a dealer oil change on my 2.7 F150, which the 3.0 was based off of. As noted by bcardinal, you've got to wait to check the oil level... To the dealer's credit, they fixed the issue when I called them on it. And had a note in my file to make sure to wait and check - I flat out told them I wanted it done right, not fast, and the service folks at the dealer have all been excellent to deal with over the years. They actually take the time to show me the dipstick before I go now... after its sat long enough.
As to the rest of the mess, that's inexcusable...
As to the rest of the mess, that's inexcusable...