i have a 99 s70, and last night it sleeted badly, and i was going out to my car getting ready to leave, and i had a friend, who trying to be helpful, began to over vigorously scrape my windshield, i noticed later that i chunk of rubber was missing from the upper seal of my windshield, and that is had come "unglued" from the windshield in that spot. my questions are, is this going to be a problem in the future? how much would it cost to repair? and can i do it myself? thanks in advance.