The brothers are pursued into Chicago by the police, the Good Ol' Boys, and the Nazis. The Good Ol' Boys' Winnebago goes into a river, the police all get into a pile-up, and the Nazis go off the end of an unfinished freeway. They get to the tax office and pay the money the mission needs, but are arrested as they are given their receipt.
Trivia: This movie set a long-standing Guinness World Record for the largest number of automobiles ever destroyed in a movie: 60 refurbished and reinforced police cars were wrecked (most beyond repair) in the various chase scenes. This record held until the belated sequel, "Blues Brothers 2000," (1998) deliberately set the new record by wrecking one additional automobile for a total of 61.