SL2 2002 back passenger window popping out

I'm not a car expert and will try to explain my problem accurately. I noticed 6 months ago that my back passenger window was popping out of the molding. What I mean is that the molding piece between the power window and the little window on the left back door is popping out of place at the top. When I went to Saturn for an oil change, I asked them to look at the problem and fix it. So they mentioned to me that they think that someone was trying to break into my car by prying off the back little window. They mentioned that the only thing they can do is replace the whole door to fix the problem. Then I asked if it will be covered under the warrenty and they said no because it was not there defect it was an outside source. Now my problem with their bullshit answer is that first there was no signs of scratches or damage around the window to even suspect car theft, and second who would want to break into my inexpensive Saturn car? So anyway what I am asking is does anyone have any advice to give me on how to fix this situation? (My car is still within the 3 year-36 thousand mile warranty limits.) It seems as if I can pop the window back into alignment if I just new the proper technique on how to do it. I tried pushing it back into place but is won't budge. I would really appreciate any help anyone can offer. Thank you in advance.