Ford Collision Warning Radar blocked and Adaptive Cruise Control not working.

Ford Collision Warning Radar blocked and Adaptive Cruise Control not working. Get error message: "Collision Warning not available, sensor blocked, see manual". This was for my 2012 Ford Edge, but should apply to many Fords with this feature. Please note: this is not a permanent fix and may not be safe if you are using the Collision Warning. I only use this for the Adaptive Cruise Control. View at your own risk!