This is not a “I know you were planning on getting into an accident with me, but don’t, there’s a baby” sticker. This is a way of communicating that 1) the driver is driving safer than usual, because there’s a barely sentient flesh puppet in a car seat that probably has an open recall out, and 2) if there is an accident, please check for aforementioned flesh puppet.

Making tired jokes is bad, making tired jokes predicated on being obtuse is even worse.