I would argue that true, open minded science will always lead a person to the understanding that there is a creator God.  Unfortunately,  most of what is called science starts with the premise that "there is no God," or at least that "nothing can happen supernaturally."  If you start with these premises, you are ruling out the truth and therefore "science" won't lead you to the creator God.  If you accept that there can be a "first cause" or "creator God", the evidence will lead you to Him.  The Bible and/or direct revelation is required to truly know God, but science can lead a person to understand that there is a God and start them on the path to seeking who that God is. 

 For science to lead one to God requires a genuine metaphysical agnosticism that is open to the revelation found in nature without presupposing any conclusion.

You are right that most scientists do not have this openness.  To be generous, it would seem most scientists do not admit metaphysical realities as an object of study.  If one assumes that which is eternal to be unknowable or inaccessible to the scientific method, then science will only serve to flesh out the boundaries of a sort of Kantian metaphysical agnosticism.