Never, never, never do that again.
It's asking for trouble. Especially when the numbers start adding up to more than 3.33 a month. "Yes, everything is MOSTLY OK but we have a squeak from the front wheels when we turn to full lock, what WILL you do about this..."
WE ARE NOT NEW CAR DEALERS, WE DON'T HAVE THE MANUFACTURER'S BACK UP AND WE DON'T NEED TO DO WHAT NEW CAR DEALERS DO.