I was looking for a solution to this problem for sometime – my laptop bluetooth indicator turns on during startup. As I never use bluetooth, I have already removed all bluetooth related packages from my system as well as blacklisted the kernel module. But that didn’t stop the LED problem. I tried using Jupiter but somehow it tends to forget the bluetooth setting. Finally I got a solution today. Add the following to some startup script:
$ sudo rfkill block bluetooth
Your bluetooth LED will be off now.