Put it in a giant bag of rice when you’re done with the soak and it should be a-okay!
But, could it detect fire trucks, a known stealthy-and-hard-to-see-obstacle, especially when stopped directly ahead of you, in your lane, with the lights on and guys in bright yellow jackets moving around it? Devilishly hard to see, those fire engines are.
(yes, the American government NASA, is there any other kind?)