It is not necessary to grease them. They are not dry. What I am saying is that there is no emergency.
But I'll bet you are going to use a better grease then they did.
I really like a moly grease. A wonderful additive.
So for this reason, you could give them a shot. You'll have what you want in there, and enough of it.
So go ahead and put them in and drive it until you obtain your materials at your leisure.