Grrrrr Jules. I would be livid! That's really disrespectful.
My family jokes about it, but would never give them things without checking. Well DS maybe as he eats everything now, but not when they're babies. I think you and your hubby need to make it very clear if there are things that are not acceptable to you. If you're ok with it, let it go, if not, they need to know that it's not ok and that you may not be able to leave your baby in their care if they can't respect your wishes.

Charlotte, I missed the part about you getting married. Congrats! I gueess you'll have a special little flower girl