Craig - Your original post makes it sound like you intend to break into someones home, garage, shed, and take their stuff.
I also don't see how you can be "trapped in your office" for days... if you can bust the vending machine to get "snacks" why not bust a window to get OUT of the building and walk home?
I don't think anyone has an issue with busting a vending machine open in your office if you are stuck there with no power for days on end...
But just saying you are going to pick locks and bust glass and take what you need can be taken a LOT of different ways