I have a 2011 Grans Sport and it has small rocks and gravel lodging in the space between the quarter panel and the rocker panel on both sides of the car. Was told a Bulletin #11-08-65-001A had been issued for 2005- 2011 Corvettes. Has anyone had this issue and what did you do to stop it. The Dealer can install a shim stock to minimize it at my cost. There is also some plastic material in the rocker panel that looks like a black plastic bag...anything on this would be appreciated.