What assumptions are we making here?
24-48hrs after an EMP? A year?
Are you walking from work to home? What time of year? If it is in the winter, are the plows running?
I like the bicycle idea, have both a Mt. bike and a cyclecross bike, with extra tires. But if it is winter, better off with a set of snowshoes or cross country skis. I wrote a post on this.
Concerning drones, the better ones I have seen require a cell connection, rather than a RF device. If the power is out, cell service unavailable, how much of an issue will a drone be?