Technically, since the deer are controlling the sleigh, maybe Santa could manage just fine with a beer or two. Now, if he partakes in every home that lines him up with one, then we'd have a huge problem in the sky on Christmas Eve.
I'm a huge fan of snacks rather than actually going home and cooking a meal. In fact, I'd much rather just eat a cheese stick or chips and dip instead of going through the hassle of prepping a meal and cooking something then having to deal with the clean up as well.