1. A method of determining an attribute of a parking structure, comprising: monitoring vehicle status data associated with a vehicle obtained by a first processor on-board the vehicle operatively associated with a telematics unit disposed in the vehicle, the first processor executing computer readable code encoded on a first non-transitory computer readable medium; recording, in a vehicle memory operatively associated with the first processor, the vehicle status data based on an output of a vehicle on-board sensor; determining elements of the vehicle status data including latitude, longitude, altitude, heading, and speed based on the on-board sensor output during an interruption of radio-based input to a location detection component of a navigation unit in the telematics unit; communicating the recorded vehicle status data to a data aggregator of a remote parking information system for storage as aggregated data in a computer memory associated with the remote parking information system; determining, via the data aggregator, whether the vehicle is in the parking structure based on the communicated recorded vehicle status data, the data aggregator, including a second processor, executing computer readable code encoded on a second non-transitory computer readable medium; determining the attribute of the parking structure via the remote parking information system based on the vehicle status data stored in the computer memory; and storing the attribute of the parking structure in the computer memory.