Shipping from Hawaii to the mainland can work. I just received several Odontodactylus brevirostris from Maui. This species is far more delicate and a bit larger than G. falcatus and they all arrived in perfect shape. There is no UPS next day between Maui and San Francisco, so it took two days - the same as it would to any large city on the mainland. As long as the animals are properly packed, two days really isn't a problem.
Roy