Not sure we should treat this as 'found money' to be spent frivolously. The Honey Booger is a terrible risk. Especially in a city like Miami.
The odds are 25% that any 5th rounder will make it in the league. At least if Mathieu leaves the weed alone we know he has talent far above that of the typical 5th rounder. I'd take the chance on him, especially if he is still on the board that late. Not expecting he will be though.