Thorainna:

Glad you got your rod unstuck without breaking it.

Regardless of what you do going forward, it isn't a bad idea to check your joints during the course of the day. I do that just to make sure nothing is loose because I don't use wax on my rods since the manufacturer doesn't recommend it.

I only had stuck ferrules once and that was on a day where is was really cold in the morning but very warm in the afternoon. Ice cured my problem that day but because of that, when I am fishing in similar circumstances I make a point to loosen and refit the ferrules once it warms up. It has never happened since.