My son is a policeman he's meant to finish at 7am Xmas morning. He can't prebook a cab/uber as he could end up working over time if something happens/keeps him there.. is he likely to be able to get a cab/uber at that time of the morning without booking. He could finish earlier if lucky . He can't get a lift as no one lives in my direction.. he's saying if he can't get a cab he won't be able to come and will be in his own . I don't drive or know anyone that does..