Oakbrook Terrace mayor resigns amid red-light camera probe 01/23/2020 Federal investigators have been digging into the political corruption surrounding red-light cameras, including a pair of the multi-million dollar traffic devices in Oakbrook Terrace. TAGS: FBI: Federal Bureau of Investigation, federal investigation, FOIA: Freedom of Information Act, IDOT: Illinois Department of Transportation, Martin Sandoval, Oakbrook Terrace, red light cameras, Redflex Traffic Systems, SafeSpeed, Susana Mendoza, Tony Ragucci