Yea, I was wrong about the National Guard. I thought it was during Hurricane Katrina.
A few days later, on 3 August 2005, FBI agents raided Jefferson's home in Northeast Washington and, as noted in an 83-page affidavit filed to support a subsequent raid on his Congressional office, "found $90,000 of the cash in the freezer, in $10,000 increments wrapped in aluminum foil and stuffed inside frozen-food containers". Serial numbers found on the currency in the freezer matched serial numbers of funds given by the FBI to their informant.
https://en.wikipedia.org/wiki/William_J._Jefferson_corruption_case