I am going to bring both keys; I have two.jeromep said:Prii aren't all that rare anymore. I find that most places you hand a car over to have a clue, or some clue. If you don't feel good about it, put a valet instruction card on the keyring, use a little tape on the ring slot so they can't easily discard it and turn off SKS so they have to follow the instructions exactly.
Oh, and you never know what valets are going to do. Get a copy of the physical door key made and keep that with you so in case they lock the fob in the car, you can get in.