If the Bolt is working fine and no visible wires in the car have any damage, what is a dealer going to do?No it isn't. There could be damage elsewhere that is unseen. So as I said before...
Get the Bolt checked out anyways.
Lay Hands upon the car and give it thoughts and prayers?
The JuiceBox plug and the outlet BOTH got really hot. They both need to be replaced.
Trim back the heat damaged wires and install the new connections.
Hopefully you will have enough good wire in the outlet box to trim out any damaged wires.
These connections have Pins and Sockets. (we no longer call them male and female....).
It is the socket that provides the 'Pin Grip'. (I could use hand gestures , but you get it...)
Use, dirt and heat can make the 'Pin Grip' get weaker and less conductive and then high heat results.
Use the best quality outlet and plug. Not the cheapest kind from the Depot.
It's not Rocket Surgery to replace these, but if you don't feel comfortable, call in a Pro.
Hard wiring it is an option but then if the EVSE ever fails you have to call in the electrician again just to disconnect it so you can replace it.