More interesting than that is the fact that the motorcade's route was not announced until the "day before" on November 21. But LOH took the rifle into the building two weeks before Kennedy's visit.
Do you recall that the man that drove Oswald to work that day swore that the "package" he carried into the building fit between his arm pit and his hand. Much too short for even a disassembled rifle. that man, Ruth Payne's husband" never wavered in that point.