I had the exact same thing in my Mustang and took it to the dealer and they said it was completely normal. They vented with a drain hole. They said just bring it back if it doesn't clear up in a day or so when it is dry weather. So may be the same for the Bronco. I have never seen it stay in my Mustang more than a day.
Thanks for putting my mind at ease. Had some early issues (rear, then front windshield wipers, replacement windshield) so I of course feared the worse.