Water damaged my SGS3, where to go from here?

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http://forum.xda-developers.com – I accidentally dropped my brand new phone in some water, and I thought it was dead at first but after a couple days it booted fine, but the battery seems to drain pretty fast and it also periodically vibrates when it's off but the battery is in. I want to get it replaced but I'm not sure what my best options are. Can I sign up for Asurion insurance and get a replacement with a deductible? The water damage indicators are pink so they'll know it's water damaged but I'm not sure what they cover (and I'd probably have to say that it happened after I signed up). Anyone else have experience with Asu (HowTos)