An exemplary method includes a monitoring system identifying a time period during which a vehicle equipped with a tracking device travels at least a threshold distance, determining that the tracking device fails to acquire a desired signal for a predetermined amount of time during the time period, and determining, based on the determining that the tracking device fails to acquire the desired signal for the predetermined amount of time during the time period, that the tracking device is potentially being interfered with during the time period. Corresponding systems and methods are also described.