They may begrudge the 'city people', but they probably won't begrudge their neighbors. It's also nice to have someone to help eat your disaster food :) I've done small preparations before, and you've got to cycle it out for freshness every so often[1], which means someone has to eat it... might as well be you and your neighbors. If you're in a community of like minded, well prepared neighbors, maybe you can get some variety at least.

[1] My elementary schools had a good program of bring in canned food at the start of the school year in case of emergency, have a picnic to eat it in the last month of school. I also did have a disaster can when I lived in California; I'm less prepared at the moment.