Subject: 99 eclipse factory car alarm problem
Question:

The alarm went off when I opened the door (it was unlocked in the garage) and would not stop until i pulled the fuse and it still took several more minutes to completely stop. The remote entry alarm button had no effect, however it still locks and unlocks the doors....Do you have any idea why this might be happening?

Answer: Travis,
I'd recommend having the dealership inspect the alarm system. There may be a poor connection at the wiring harness or the alarm module could simply be malfunctioning.
Good luck!