Nothing is secure about a system designed so poorly you have to give out your password. That should never be needed.
You didn’t have to give out your password, in fact you never should. If the machine remains locked, that’s not your problem. Your IT department should have created an admin account on the machine for IT before handing it over to you to avoid this scenario. The IT departments incompetence is not your problem.
If you wanted to unlock it as a courtesy, then they should have offered to send the laptop to you so you could unlock it. You never ever give anyone your password, and IT should know better than to ask for it.
If someone is holding a family member at gunpoint and threatening to kill them if you don’t give up your password; you do NOT give up your password. If an evil mastermind is about to destroy the world, and it can only be saved by you telling your password to another person. You do NOT give your password. There is no valid reason to ever give your password to anyone.