Fair enough. Though, I wonder why Tony didn't just hire more people to speed up the wreckage-clearing. He obviously had access to funds.
I was under the impression he was going for "they believe me to be dead" element of surprise. Remember the Chattanooga news van guy? So all that was likely being handled by Pepper, who knew he was alive but wouldn't have known it'd be nice to speed up the cleaning around he garage area.