If you haven't left yet, you might consider waiting a couple of weeks.
All of our rivers are above flood stage, many of the back roads are impassable and the gnats, ticks and skeeters are terrible. Glacier's Hwy to the Sun road was not opened as of yesterday because of still lingering snow. The snow pac in the state is/was 200 to 700 percent above normal this year.
When you come do yourself a favor and travel the back roads to all the little cow towns, logging and farming centers. They have as much and in their own way, more to offer than the tourist spots and their liesurely pace of life would be salve to someone who needs to "get away from it all".
Go north out of Livingston or Big Timber and catch the High Line, travel east to Scoby, then south to Sidney and then west to Lewistown.
If you have time, cross the mountains to Townsend and north the Helena. West to Seeley, west to Kelspell and south to Missoula. The Interstate will take you home from there, through Washington and down the coast.
Have a nice time and come back soon.