A heat gun is the easiest and best way to remove adhesives. See if a buddy has one or a local auto parts store to borrow. I've heard of people using a hair dryer on max and a small work area and peeling it up, also I don't see how you can damage the paint as it won't get hot enough to cause harm. As mentioned the nylon plug method is a good temporary fix. Try that out and if you like it get a repaint.
1998 Bright Atlantic Cobra - 3:73's, BBK ls, Pro 5.0, 96 Cobra STB, Borla XR-1 Catback, Custom Catch Can, Spec clutch, MM Firewall adj, FRPP wires, RSD, Spoiler delete, 245/275 BF Goodrich g sports on chrome 95 cobra r's
1998 V6 Mustang : SOLD!