The keyhole is not even a problem. The first time you put your key in, the dip comes off the keyhole & you can peel it off.
As for the badges, you'll do the same thing as I did in the video. Tape off all around, spray, take a toothpick or your finger to get the inside of the emblems.
So far I have dipped:
Fangs
Rear Valance
Side Mirrors
Emblems
Side Blinkers/Emblems
Mud Skirts
Tail Lights
Rear Spoiler
Handles
Headlights
Wheels
Have fun with it!