Any suggestions on keeping a deer cool after field dressing during bow season? This may be a dumb question but it will be my first year bow hunting in Minnesota and say I luck out and get a deer in late Sept./early Oct. and it is still fairly warm outside.

How much time maximum should lapse between when I field dress the deer and when I get it to the processor? How should I keep it cool if I can not get it to the processor before closing time? Would packing bags of ice inside the body cavity work?