This is ridiculous.
I have to agree with Wendy McElroy on this.
Perhaps she should be fined for lying to the police; but unless there is an indication that she anticipated and was deliberately trying to get the police to search for her, I feel that we should assume that she just disappeared, which she has a legal right to do, and then panicked when she discovered that there was a big multi-state search.
In any case, I am inclined to be merciful (if that is the right word) to Jennifer Wilbanks. Which means not charging her with a felony because I am embarrassed at wasting a lot of money on a futile search.
That is all.