The two OM-Ds survived almost as well as the birds.
Only one of them has a small leak and the EVF misted up at the top.
When they warmed up in the caravan, it all dried out fine.
I simply wiped off the barrel of the Panasonic 100-300, keeping it at 300mm until I got to the car, so that the wet barrel didn't drag water into the lens as it slid back. I don't like external zoom lenses for that reason - despite internal zooms being more expensive.