This won't make your ice cream invincible, but it's enough to keep it fresh for a little bit longer. Ice cream placement within the freezer also can make or break ice cream. The freezer, much like an oven, has a temperature control, but some spots are warmer than others.
Also most millipedes are nocturnal. They are generally speaking harmless but most species have a series of metathoracic glands which produce a repellent substance which they can exude when they feel threatened. In some larger species this fluid can be corrosive and cause blistering of the skin in large doses.
Millipedes can be an occasional pest, gathering around windowpanes and in basements, especially in the spring and fall. They can be a concern for homeowners in large numbers, but they cannot sting or bite you. What they do bite is already dead, as millipedes are scavengers searching out decaying sources of sustenance.