Did you rent an Audi in Phoenix and forget a backpack?

I picked up an Audi Q3 from national Rent-A-Car last night in Phoenix and there was a backpack in the backseat. I found them when I got to my hotel. I plan to call national but if by any chance this is your backpack and can describe what might be in it, especially why I am posting in the Seattle sub Reddit. Please reach out and I will get it. Returned to you. Otherwise I will return it to national later today or tomorrow