Unwilling to work

My 70 year old fathers flight was canceled out of JAX due to TS Beryl and had originally planned to return his rental car to JAX, but wants to drive to meet his connecting flight in ATL.  In order to drop off the rental in ATL, he would have to pay a $163 drop fee.  A drop fee was disclosed, but no amount or limits were given.  I went online to try and change the drop off location, and the site would not let me.  However if I were to drop off the car, and re-rent it in less than 5 minutes, it would cost $12.  He called to talk to someone who hung up on him instead of transferring, but that happens occasionally.  He called back and was told that there was nothing that could be done to waive the drop fee.  I called and asked to speak to a supervisor regarding the fact that there was a Tropical Storm hitting, if anything could be done.  A supervisor was not available but I was asked for my number and one would call me back.  An hour later, I called to talk to a supervisor and once one got on the line I was told that the system has a contract listed and his contract includes a drop fee.  I explained the circumstances and was told it could not be waived.  I explained how I could rent a car for $12, she told me that is what we would have to do.  In the middle of a tropical storm, drive to the airport, where no one is currently staffed, to drop off a car, re-rent it to save $150!  I will tell everyone I can about this ridiculous company and will be sure to never rent from them again!