Deputies were told the suspects had later been seen near 11496 North Ventura Ave.
Deputies tracked down Adrian Castro, 18, and Christina Arellano, 20, at a McDonald's restaurant in the area. Deputies found the iPod and the knife in their possession. The victim positively identified the two as the suspects.
Castro is on parole for a January 2008 Oak View bank robbery.
Castro was booked on charges of robbery, participation in a criminal street gang, and violation of his parole. Arellano was booked as an accessory to robbery.