After going out of town for a few days myself recently, I would HIGHLY recommend bringing a small cooler, like a lunch cooler or lunch tote, and bringing food from home.
I've seen some small soft-sided lunch totes that have a zippered bottom so you could put ice in there and keep it from your food, and also some backpack style ones (definitely what I would use, and am looking into getting for myself).
We had an easy time getting a cup of ice here and there, and I would next time bring zip-top baggies to hold the ice and catch drips. I would also double bag the ice so drips are minimized.
I would keep everything in bags, not hard sided containers, so you can fit things here and there, and maximize the space and what you could bring.
On our trip, whole tomatoes and avocados held up well, as did some leftover salad (we did have that in a hard-sided container), and dandelion. I would think broccoli florettes would hold up well, and lettuce and spinach for the most part too. Well, probably most veggies and fruit, since you're only talking 5 days. We were gone a total of 4 days, and things held up quite well.
I am updating my experience in the Restaurants thread, which also might have helpful information:
http://www.rawfoodchat.com/forums/ra...-out-1191.html