I'd like to get a Britax chaperone car seat for my soon-to-be newborn that was manufactured after Jan 1, 2013, since Britax discontinued the use of carcinogenic flame retardants in their car seats after that date. I've called around a lot and none of the stores have 2013 seats in stock currently, though Britax says they have shipped out already. Has anyone found a 2013-manufactured chaperone?