As you approach the toll bridge from the south bound side you go into the lower level of the bridge. On your left there is a small area where a white DOT exploror sits and waits. blocked by the bridge they gun you and radio to an unmarked maroon crown victoria with dark tinted windows who nabs you at or after the toll. on the north bound side there is construction just before the toll, at the end of the construction the same DOT explorer sits on the right behind some construction dividers and radios his buddy in the maroon crown vic. I saw them there one friday when I drove past at 6:30pm and on the southbound 3 hours later still at it.