You can open your gifts at Safe House without spending your points!
"Hi I just take this link. With it I can open my safe house boxes early. I try it and I don't lose any of my GF point or any of my loots. But I am not sure is this link save for other things."
http://mwfb.zynga.com/mwfb/remote/html_server.php?xw_controller=safehouse&xw_action=open_gift_free&xw_city=1&cb=1000000038339821261403665&box_num=0
Copy and paste this on your browser..
I have tried it on my account and I open all my gifts without spending my GodFather points... 
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I don't know what do you mean with "save for other things" but so far I enjoy it..
Have a try too..

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