" The rapper was on his way to Switzerland for a European tour, Richman said. DMX flipped on his unauthorized flashing lights and siren and chased the man, Sergey Priporin, crashing through a toll gate in the process, the source said. Priporin called police, who found DMX and another man, Jackie Hudgins, trying to pull Priporin out of his car, the source said. Priporin told the cops DMX had pretended to be an FBI agent, but not convincingly enough. The rapper was charged with menacing, possession of a controlled substance, possession of a weapon and driving under the influence, Richman said. DMX was treated for breathing problems at Queens Hospital Center and detoxed for several hours before being moved to Queens Central Booking yesterday, the PA source said. He was "sleeping like a baby" in a cell as he waited for arraignment last night, cops said. wwoodberry@edit.