04 & 05 TSB water leak burns out coils

Just dropped $772 at the dealership to fix 2 burned out coils and 2 plugs from water "mysteriously" entering the engine bay. Got home and noticed a shiny new bead of caulk on the middle seam of the black plastic cowl. Went back to dealer to ask what that was about because they told me there were no leaks. Dealer said it was a TSB for an interior leak and tried to convince me that seam was behind firewall and therefore couldn't reach the engine. Thanks to fellow Priuschatters, I found TSB EG063-05 and sure enough, it's exactly about water leaking onto the coils. Will be calling Toyota tomorrow - anyone had any luck getting them to reimburse you for out-of-warranty TSB repairs?