1999 Dodge Intrepid ingnition wont shut off

Computer problem
1999 Dodge Intrepid Front Wheel Drive Automatic

a few weeks ago when I put my keys in the cup holder & closed it, they fell thru. So we put the car in netural lifted up the plastic cover to take out the screws to the cup holder & got the keys first the ingnition wouldn't turn to the lock but it shut the car off, then messing with it by puting the car in park a few times it was ok, now the ingnition wont shut the car off when we put it in park, I hope you can help