A Pennsylvania lobbyist and close friend of former Republican U.S. Rep. Curt Weldon tossed her BlackBerry into an Arby’s trashcan and tried to get rid of subpoenaed documents to throw the FBI off her trail, according to federal prosecutors.

It didn’t work.

Cecelia Grimes was charged yesterday with destroying evidence in the influence-peddling investigation of Weldon that became public in October 2006, ending his 20-year reign as Delaware County’s congressman and crushing his dreams of becoming chairman of the powerful House Armed Services Committee.