Using kitchen stove/oven for emergency heat?

In a winter emergency - say an ice storm for example - the power goes out so the furnace won't work. Do you think I can safety light my gas stove & oven using fireplace matches? There is no pilot light, has an electronic start, but I could turn the knob for the gas to start and quickly light with match(for stove top AND oven)? The manufacturers instructions say I should not attempt to light manually, but in an ice storm with no other source of heat can this be done safely?