I let Elizabeth hold my car keys as we were going out to the car.

“Mama!  I need to unlock the door!  I need to unlock the door.”

“But, Baby, the door is already unlocked.  We are actually IN the car right this minute.”

“I NEED to unlock the door.”  (Tears start.)

So I had to unbuckle her (unclebuckle, if you are Elizabeth) from the car seat and let her “unlock” the car.