The carncil will come out with all sorts of flannel and claim all sorts of legal justification for not paying out - almost all of it will be flannel.
A less honest person might get a friend to report the pothole today, and then the victim can claim they hit the pothole in a couple of days time. However, such tactics are dishonest and I could't possibly countenance them, so don't let me catch you pulling off such a sneaky trick young man! It's quite alright for the councils to duck, dive and even outright fib, but not for victims to do the same.