A thought (take it or leave it, as you wish):
Instead of thinking about the vacation as exile from your piano, why not try thinking of it as an opportunity to gain life experience and inspiration to bring to your music-making when you get back? The Oregon coast is beautiful, breath-taking, awe-inspiring, and in three weeks you might be able to stock up on several years' worth of mental images for your playing. The bottom line is: when you're 55 years old, will you remember what you practiced for those three weeks, or will you remember the vacation with your family, and the beautiful sights you saw? There's no right answer to that, but how you answer it probably determines what you should do.