timekpr: inadvertently locked myself (admin user) out & can't boot - how to fix?

[technomancer]

I am not sure what you mean by "locked out". If i understand correctly, you just "lost" the password ?

It's difficult to explain if you haven't used timekpr.

Essentially, after I'd finished resetting PC usage times for my son's a/c today (from my admin a/c on the same PC),
I clicked the padlock as locked (red) for the admin a/c by mistake, when I should have left it unlocked (green) as I usually do. 
The effect of this error appears to be that I'm now literally locked out of the admin a/c. My admin password will not let
me in.

I lock the settings for my son's a/c, from my admin a/c, so that he can't tinker with the time settings that I've set for his PC usage.

Sorry if this is still unclear.

Mike

Sorry Mike I have no experience with that software. I would imagine logging in as root and going from there would resolve it.
Assuming you have a root account setup..... Sorry wish i could be of more help.