Methylation of perchlorate

I am exploring (non-experimentally!) the methylation of a perchlorate precursor, either the acid or pre-existing salts, to produce the alkali methyl perchlorate. The methylating agent would be methane itself, and I would like to understand whether: 


1. The product is possible from these (or more) reactants,
2. Whether the methane, as an organic combustible, would not simply deflagrate with perchlorate, leading to no other products (beyond fire or explosion),
3. If methyl perchlorate is deliquescent (as I believe that perchlorate esters hydrolyze rapidly with water), and
4. If low temperature conditions (< 5 °C) might permit '1' and avoid '2'.


Reference to any answers would be much appreciated, my interest being in recent events in the Siberian tundra...


