The Last Custodian by Stephen Lightbown
A paraplegic wakes to find he is the sole survivor of an unknown apocalypse. He decides to survive and spends a year navigating the empty motorways of England to see if he really is the only one left alive. He sets off with only his wheelchair and enough food and medical supplies to last a week. To live beyond that he must adapt and scavenge. Told through a daily account of poems he begins to question his own identity, whether you are disabled if there is no-one to be compared to and what does it mean to want to move forwards.