I answered my own question. I went to a locksmith shop to see what the options were. They wanted $60 to recreate the chip key and said I needed to bring in both original keys to do it, or $6.50 for a standard key. I took the cheaper option. It works fine. I set the alarm with the key fob, got the horn chirp, opened the door with the new key (but did not wait more than 5 seconds) and drove away without setting off the alarm. So, if you have a 2005 I guess you can save your money on the chip key. I will try it again after a wait period, but it sounds like the PATS alarm is non-functional.