door lock

Hi guys

Anyone experienced this.Went to lock the car this afternoon did,nt get any noise from the central locking then the lock came back just short of the normal upright position, but now the key is stuck in the lock.Have tried some wd40 but still solid.It does turn to the left but its not doing anything.Maybe one of the barrels has dropped.

Is there a way of getting the barrel out without taking the door panel off and disconnecting the central locking etc thanks scandy