bought a garmin for a trip to the mainland, going to SF for a day...got the nuvi 40 that has that lane assist feature since I am paranoid about driving to SF from Santa Clara...

just tried my gps this morning from my commute from east honolulu to kalihi...no lane assist feature showing...even while on the freeway...does anyone know if it will show up on a gps [that has that available feature] when driving in San Fran?