Sorry it took so long to reply - was on-call for work the last 2 weeks so just now got a chance to check this out.
Yes, it has been raining a LOT lately (damn near every day for the last 2 months).
At any rate, I cleaned out what little debris (leaves/pine-needled/etc) was in these drain areas and flushed the ports with a healthy amount of water. They seem to be draining just fine.
I found 4 drains up under the front cowl and then the two behind the door under the convertible lid.
When I finished this, I checked, and under the driver's seat (not visible from the front), when I slid it forward, there was ~2" of standing water!!
WT*??
So I suppose I now have 2 questions.
1 - what about the water causes the alarm to trigger (curious more than anything - a sensor under the seat?)
2 - more importantly, where did all this fluid come from? (I'm guessing these drains have something to do with it?)
I drenched 3 towels soaking it all out as best I could and have a couple fans running in the car to air it out.