Twenty-four Hour Banking, Sixteen Hours a Day

I realise that this has been done for security reasons, but it bugs me nonetheless. ATMs in Northeastern Brazil [even ones misleadingly named Banco 24 Horas or Banco 30 Horas] are only open between 6:00 and 10:00pm. Need money early in the morning or late at night? Too bad for you, the lights are out and nobody is home. Bank machines that are found in public locations that cannot be closed [shopping malls which have restaurants and cinemas and airports] are restricted to a cash withdrawal of R$100 [CAN$50] after ten. You'd think that having been caught cashless a few times that I would have learned my lesson. (Un)Surprisingly, this is not the case....