Breh.. he had the whole city to himself. it didn't have to be a bunker but he could've at least found a crib with a decent basement. He took the time to set up all those bombs/traps so he obviously planned for them possibly finding his location. He was there by himself for over a year which means during the summer he had more time during the days to find a new spot.. plus he was driving. Instead.. he opted to go to empty stores and talk to himself.
nah but he had the city booby trapped remember
I get ya bunker idea, but essentially thats what he did with the house
if you're the last person in the world, shyt I think you'd want a normal ass house as opposed to the batcave lmao