"Free Shipping" ended up evaporating at Babies-r-us' online checkout - classic bait and switch.
I was expecting my $500 purchase to warrant the free shipping on orders of over $100, but no, my items were 'not on the list' according to two rounds of email with the company. Also, item delivered had problems, but that's a yet different story.
I have filed with the FTC and have registered my baby at Target.