My take on the magic item use rules: A VoP character can freely use the property of others for the aid of others--all forms of "please use this on me" type requests are ok so long as they are compatible with Exalted status.
However, the VoP character can't accept potions or the like to use on himself.
A VoP character also does not lose his status through the "use" of a magic item whose use can't reasonably be avoided. He doesn't lose his VoP status from bringing home a luckstone (although he must dispose of it at the first good opportunity to do so) and he can even put loot (but not anything of his own) in a magical storage container.
He's also free to carry as much food and water as is necessary to reach the next place they can be obtained.
It's all rather moot to me as I would never allow an Exalted character in the first place.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.