I doubt it. Its probably your truck.
I'm a shadetree mechanic, and have never experienced oil coming back up from the driveway after it dried, if its fresh, then its a fresh leak.
What I do, is keep UV dye in my crankcase and tranny when I suspect a leak. Go out with a blacklight and you can trace the leak.
front and rear seals leak often.
I was cleaning my engine the other day and saw a valve cover leak. It happens, even if you are up on maintenance.