Lots of legal experts in this thread... But very few with common sense.
Y'all really think the Uber driver, who's very likely sober (at least not drunk), is really going to make a huge fuss and press charges if he accidentally took the charger?
And you really think the cops are going to take all this time to arrest Marlon if that was the case? Absolutely not.
Don't know the difference between theft and robbery, maybe Sportsdame is right, but common sense tells me there are 2 reasons Marlon done f'd up. And smart money says he wasn't sober... Shit happens when you party hard.
EDIT: The police report speaks for itself... Not cool, Marlon.