Visiting the in laws - help!

I will be visiting my in-laws soon, about 4-5 weeks out from my RNY.  This is my first time traveling, and I am so worried!  Firstly, the drive there is like 6 hours and I will have to plan fluids and eating accordingly - but I am even more worried about once we get there.  MOL is a "country cook" in the worst way - loads of butter, bacon fat, salt.  Meat is as dry as a bone, vegetables all canned with added salt and fat, and whole grains have never dared to cross her threshold.  Yes, I have let her know about my needs, but my expectations are low - after all, this is the person who showed up unexpectedly to "help" ONE WEEK after my surgery with homemade cookies, brownies and a cake.  This was even after a DIRECT request  to NOT bring any sweets.  On the one hand, she seems well-meaning and sweet, but boy it makes me wonder if I am seeing some unconscious attempts at sabotage.  And, just to make things worse, I find these visits to be horribly boring - my prior MO would be to snack on cookies and sweets, etc.  I will stock up on protein shakes, bring my walking shoes, and try to find a good book (I can only handle so much Weather Channel before insanity sets in)  Other suggestions?  Commiseration is also welcome - it would be nice to know that I am not the only one having these issues!!

Plan, plan, plan...  plan your meals ahead of time. Get there and go to the store and buy some healthy choices.  Try and stay busy but it sounds that can be a challenge.  Here is a list of 50 things to do instead of eating. Some of them do not apply as you are not home, but some may help.

http://www.obesityhelp.com/content/50-Things-to-do-instead-o f-snacking.html

Good luck and come here often during your stay and post for help if you need to 

You'll have your protein shakes and that's good.  Take string cheese, cans of chicken and tuna to whip up with a little mayo, cartons of greek yogurt and put it all in a little cooler that you take with you.  

Planning will help you make sure you get in all your protein while you're there but it will take other strategies to NOT eat what she's preparing.  I'm sure it'll be a food-fest....she sounds like that kind of person .  You know the kind.  They take it as a personal badge of honor if they can make someone eat off their "diet".