Had a somewhat similar experience recently... Couldn't find my car where I was sure I parked it. Reached into my pocket, figuring maybe I could use the fob to set off the alarm. Pulled out the key to Wife's car and realized I was looking at Wife's car about where I remember parking.
We call it CRAFT Disease.. Can't Remember A F-in Thing
My wife and I were walking out of Costco the other day and she said that her keys weren't opening the car door. I said those are your keys. I don't have a Honda.