I live in an area near where flooding occurred. I purchased a new F250 with an affidavit saying this vehicle was not in water. It now has less than 4000 miles, I see corrosion and rust underneath truck and also on one of the hardware pieces between the seats. I looked under another truck parked next to me at the grocery and saw none of that. My truck has only been used on the highways and very little too even though I have had it longer than 6 months.Anyone have a comment or recommendation? My wife already brought it to the dealership to show them, and they said stop worrying it this is normal.