Hyundai electrics

I had a dead vehicle yesterday. 2007 Elantra, shut it off the previous evening, went to get in, remote lock doesn’t work, fuel and temp gauges are pegged to the top and I hear a clicking sound from the dash. This is wothout a key in the ignition! My wife’s 2007 Tucson has continued running when she removed the key! She has also had all the lights and acc stay on when she pulled the key. Has anyone experienced this problem? Is there a TSB regarding ignition key? Inquiring minds want to know.