I ran into the same problem about a year ago. Tomarse is right on, don't just rip it off, it makes mess and that stuff will be in you're hair after everytime you drive. If you've got a hatch back it's really simple to take out (never tried with the sedan) The 3m spray worked alright, it did start to sag after a few weeks for me, but i might not have let it set idk. We ended up using hot glue and that has held up ever since. It only took my two hours and it was definitley worth it. Made my car few new again.
Good luck.