my tail lights have condensation too. It usually goes away though. Tonight at my house it is about 19 degrees!! I am ready for spring!! I ran through the touchless car wash and I had ice all over the front by the time I got home.
I am liking the answer about the headlamp adjustment...it makes sense but I don't know if I am 100% sure that you need a funnel to do that!?? Since when did they make it easy to work on these things!
I will probably lie awake tonight still wondering about it.