Is there a way to access the exact Delta timestamps of when I checked in for a flight, checked the luggage, and/or boarded? I need to argue with my rental-car company about when I returned the car, so I want to be able to say that at X time the ticket agent scanned in my luggage and at Y time I boarded the plane (saying I went through TSA at Z time would also work, but I'm guessing I'll probably be out of luck about getting the TSA timestamp), so therefore I would have already returned the car. Is there a way that I can get the X or Y timestamps from Delta? The app/website don't have it on the skymiles activity page, but would the Medallion line be able to give me that info if I gave them the PNR?

Of course I have neither my BPs nor the barcode on my luggage.