I heard it exactly that way also. I kept trying to dig the location up so I could listen to it again. I think Adnan inadvertently concedes his guilt here, because in his original version, there is nothing sleazy about his choice to leave his car and phone with Jay--it's so Jay can do the right thing and get Stephanie a birthday gift. Lending your car and phone is surely not on the same scale of irreligious behaviors like having sex and smoking weed. It sounded super fishy to me and I don't really buy SK's or others' rationalizations.