Yes.

It's obviously going to depend on factors like terrain, climate, and how long you're expecting to be getting home or bugging out. For a short-term (72 hours or less) kit I'd expect "real" shelter items to be a huge amount of weight and space compared to anything else other than perhaps water. What's appropriate for me to "get home" in an urban/suburban setting is going to be very different than for someone who might need to hike fifty miles through the mountains.