I visited a supercharger today and was told by the Tesla Valet that cars purchased after 1/15/17 will NOT get free charging at superchargers. He did not know the rate that would be charged but thought it would be buy the "mile" and not the time charging. He did say that currently all owners must pay .40 a minute for every minute the care is left "fully charged" (after a 5 minute grace period). I asked if Tesla is honoring there wold that superchargers would be free for all original owners for cars bought before 1/15/17. He said yes to the best of his knowledge. Has anyone else heard differently?