Moose are untameable; we eat them, not ride them (and occasionally get stomped by them, ornery buggers). WTF is a ski mobile? Do you mean a snow mobile? We call them snow machines up here (stupidly ambiguous term, I know), and they're as legal to operate in Anchorage as ATVs are in Boston. This isn't the sticks. If they live on the road system, the vast majority of Alaskans drive cars. A very few walk, and even fewer bike.

I understand that MA drivers probably suck, but I really doubt that AK drivers are any better. Anchorage is the only city that I've been where you'll regularly see pedestrians walking down fully lighted boulevards with both headlamps and rear blinkies. Pedestrians, not cyclists. Because AK drivers are that oblivious to anything that isn't another car (and sometimes even then).

Can you angle your steady lights down? Can you turn them off and rely on your helmet light to get you through crossings? How do pedestrians manage the road crossings without headlights? Is it possible that there might be solutions to your road crossing issues that don't involve bombarding fellow MUP users with painfully bright lights? While it might be true that you're safer currently doing what you're doing, that doesn't mean that it isn't anti-social; people use the "my safety FIRST" excuse to justify all kinds of anti-social behavior, e.g.- insisting on driving gigantic SUVs.

I agree with Clifton that a helmet light is probably your best bet. You don't even have to turn it off or change modes, just angle it away from oncoming MUP traffic, and angle it towards crossing auto traffic. Works well for me, anyway; I have a headlamp that I wear when road riding for the sole purpose of being able to point it into the cabs of cars and trucks that might try and cross hook me. My fiancé has the Princeton Tec headlamp that Clifton mention, and that thing is painful to get speared by, and can light up the inside of a car from a respectable distance.