1. An electronic device comprising: a finger biometric sensor; and a processor configured to cooperate with said finger biometric sensor to acquire spoof detection data based upon an object being placed adjacent said finger biometric sensor, determine whether the acquired spoof detection data is representative of a live finger based upon at least one of complex impedance data, spatial alignment data, and light polarization data, maintain a user-interface locked mode upon determining that the acquired spoof detection data is representative of a spoof, switch from the user-interface locked mode to a user-interface unlocked mode upon determining that the acquired spoof detection data is representative of a live finger, the user-interface locked mode permitting limited functionality while the electronic device remains locked, subsequent to the switching, cooperate with said finger biometric sensor to acquire biometric matching data of a user, perform finger matching based upon the acquired biometric matching data and stored biometric enrollment data, and enable at least one additional function of the electronic device upon determining that the biometric matching data of the user matches the stored biometric enrollment data.