Luckyone,
I wouldn' t worry to much about it,if you guys get one or 5.You should get it back to camp skin it,1/4 and put in game bags let it hang in the shade if it is getting down to 25 temp at night it will be good for 2-3 days.If you shoot one on the first day,I would take it to a prosseser for him to keep in his freezer,they will do that for not much cost.