So sorry to say it wasn't Mariah.

On the way home, I drove over to KP for a quick look. No Falcons, so I headed up Latona towards home. As I approached the intersection of Latona and Ridge Rd W., I spotted a Red-tail Hawk flying over the Marriott on the other side of the road. S/he flew towards me and landed on top of a Evergreen in the small cemetery (Falls Cemetery) on my left. I was happy to be stopped at a red light, so I had time to watch the RTH for a little bit. The light turned green and I crossed over Ridge Rd to Fetzner.
On the NW corner of the intersection is a small plaza with a Ashley Furniture store behind it. The roof of this store is usually covered with pigeons, lined up like a Peregrine Buffet. I always look and yesterday, instead of the usual line-up, there was a large bird sitting at the end of the roof line. I turned left down the next street and was able to see the bird through the trees. It was a Peregrine! WooHoo!
I quickly made my way back to the Ashley parking lot. What a beautiful bird. She was definitely an adult and very large, definitely a female. I got my camera out and took a few pics before she spread her wings and headed west, chasing a couple pigeons. I drove in that direction but was unable to find her.
I checked my pictures last night and I'm sure it was not Mariah. The lighting was poor, but I could see a hint of red on the band. This may have been our KP female.
We'll keep watching!