Wow...It's weird that it would just pop up so big all of the sudden like that. I wipe my front glass at least once a day...so this appeared overnight! It's kinda neat too...a tiny part of me hates to wipe it away!
Thanks everyone! Good to know that it wasn't anything to worry about. Also...the frogs made the decision to get rid of it right away. They were climbing the glass and destroyed most of it already. Guess I'll be wiping it off in a few minutes.