Already explained, Birdman. See our above interaction.
Long story short - I believe the police report. I believe the police when they say they noticed the cord Marlon was arguing about didn't fit in his freaking phone. I know you're not a huge fan of police, but I don't see what good lying in their report does for anyone.
So common sense tells me if he's too drunk to realize the cord he has didn't fit... That the uber driver knew it was his cord, not Marlons, and shockingly didn't want Marlon to take it... So it took a real drunken idiot to be a dick and not give it back.
Mad props to the uber driver for following through despite Bama fans hating him for life... Will be a good lesson for Marlon.