Hours after hearing arguments in the case, a federal appeals court threw out the convictions of five people accused in an alleged scheme to provide undocumented immigrants with car titles and registrations. In an unpublished order, the 7th U.S. Circuit Court of Appeals directed the federal judge who presided over the defendants’ trial to acquit them of a charge of conspiring to violate immigration law in Indiana. The court gave prosecutors the option of retrying the defendants on a charge of conspiring to …