Opinions please

Still after everybody's comments I stand by just acting country dumb and politely respectfully getting all his stuff together and politely and respectfully giving it back to him and thanking him for allowing you the opportunity to help him out. Also apologize for being so rude as to be presumptuous to charge him so much. After that you can even ask him for his forgiveness and then thank him again one more time before you leave. And then get a great night sleep!