Most likely you'd have a plan for getting out of the country. Hit up some where like mexico , move around alot while in these areas and you will be fine .
Personaly if I robed a bank here in the usa , I'd go strait to mexico (very easy to get into ) Start making my way south buy a cheap boat and then travel the world
Or i'd buy a boat , leave it in jersey , rob a bank , hit the boat and be off . Spend small amounts and don't stay anywhere long .