Join Date: Sep 2013
Location: SFO/DTW
Programs: DL PM 0.5MM, Hyatt Globalist, HHonors Gold, SPG Plat, Marriott Gold, Avis PC, National EE, Hertz PC
Posts: 1,988
I can't clarify on scenario 1, but for scenario 2, you will earn rental credits since return/pick up is on two different days.
Scenario 1 will also earn credit if you use National since the pick up locations are different.