I did that a few weeks ago and then headed up to the Sierra; trouble is two days later the bottles were still ice. Couldn't break the ice so where I did have nice cool water to drink, I was only using a half a bottle at a time. Imagine how dumb I felt breaking out the MSR to boil water to melt my ice!.
Lesson learned, consider the temps of where you are headed, because this rookie sure as hell didn't.
