Wow- I have always left a welcome basket (wine, chocolate, dried fruit from our farm), as well as have a coffee-bar type thing in the kitchen with coffee, teas, and breakfast bars (to give guests a perk once they land after a potentially long day of travel). Never even thought about whether or not that would be 'allowed'. I can't imagine any issue if things are sealed. And, i can tell you most all my guests acknowledge the basket with appreciation. I think it's a nice touch, and makes a stay feel personal. I'd say go for it!