Hi Melissa. Ooops! Sorry, I missed that your vehicle is currently in for service. In that case, just make sure they also look at the window issue so it can be properly diagnosed and corrected.
And even if they state they "...could not duplicate the issue..."/it worked fine while they had the vehicle, be sure the fact you notified them about it, along with any steps they took to diagnose, are noted on the work invoice.
And get a copy of the work invoice. The Service Department should always provide a copy of a work invoice to the customer.
Keep us updated and good luck.