How do I get my boot applescript to quit once it has finished?

I have a script set up to boot Google Chrome on Login in fullscreen mode in Mountain Lion

The problem is that the script is left in my dock and it needs to force quitted to exit.

The script seems fairly simple but I'm not sure how to get the .app script to close once its finished doing its business!

The script I am using is pasted below:

do shell script "/Applications/Google\\ Chrome.app/Contents/MacOS/Google\\ Chrome --kiosk"

Thanks!