Yaris won't start after heavy rain

[lsmaclea]

2009 Yaris 5spd 3 door liftback:

So, went out to the car this morning to go to work. Hurricane Sandy came through Boston last night and dumped a lot of rain and wind.

Car would turn over strong, and I could smell some gas coming out of the tail pipe, but it wouldn't start. No flooding, nothing wet inside the car.

Had it towed to the dealership, when they got around to looking at it a few hours later it started right up. Seems like an ignition issue to me. Any common culprits for water related ignition problems?

Thanks in advance. I have the extended Toyota warranty on it, but I can't imagine the dealer will replace anything without the car actually being broken when they have it.