Nope -- I remap Caps Lock to control, and if I'm not careful I can wind up logged in with it stuck in caps mode, and no way to get lowercase characters without locking the screen, turning off all-caps mode, and logging in again. Luckily, this is hard to do :-)
I use AHK to remap CapsLock to double-click to reduce the strain on my mouse hand, but I can access the original CapsLock function via shift-CapsLock. Try it -- maybe that will help you.