Thanks everyone for your thoughts and advice, like most we are also thinking we should make a call when we know they have them in the car with the kids and under the influence, we are watching closely. I will update should there be any changes.
One good this is we were able to see them this Saturday, being the mother goes to school on Saturday she was in a pinch and had no where else to take the kids so we had them for the day, they seem in good health but they are now back with them, I wish we could have just kept them with us...