My wife drove our 2004 Accord home tonight and couldn't get the key to come all the way back to the off position to remove the key. I tried and tried to get the key out, thinking the lock was jamed. After reading on the web, I found there is an interlock cable where the key can't be removed unless the transmission is in park. I got a flashlight and found a quarter, seated edgewise down at the base of the shifter. The car would go into park, but would not quite get seated in park enough to make up the interlock to the ignition switch. As soon as we removed the quarter, and put the car in drive then back in park, the key came out fine.