You might be a little late. Did you just get the news? How fast is your postman?
Read the wiki on Vanguard's frequent trading policy.
If, for some reason, you wish to buy back into a fund after selling it, you do not need to wait 60 days. There are two easy ways to do it. They are clearly spelled out in Vanguard's policy. Both introduce a short delay into the process of placing the order, and one might surmise that such a delay is enough to discourage the investors who are the target of the frequent trading policy.
I mentioned your postman because if you had sent a letter last week to sell, you could buy back on the web today. If your letter instructions were executed yesterday, that means you would have been out of your funds for one day. But that would have required planning on your part. I don't think you can do a zero day out and back, so you may be asking for the impossible.