In 1943 a B-24 liberator called “Lady Be Good” went down in the north Africa, in Libya. It was found in the 1960s by an oil company prospector. All the windows were still intact as most of the plane was. None of the ammo self detonated, in fact the people that found the plane test fired the 50 cal Browning’s and they all worked.
It gets very hot in Libya, inside a metal can. Your ammo will be fine in your trunk.
_________________________
You can run, but you'll only die tired.