2007 Focus the gear shift isn't working what repair do I need?

What is your question?

Car belonged to my son who passed away on May 31th. When I drove it the first time and put it in gear the indicator showed me in drive but I was in neutral. When I parked it the car would not go into park. I am afraid I will not know what to tell a repair man & will be charged for repairsw I do not need. Please help.