I don't have any personal experience with hotels in Louisville. I would like to point out though that the "bar" of a hotel is off limits to loaded carry. The bar is defined as any place serving alcohol to be consumed on premise that does not make more than 50% of its profit on food or does not have a seating capacity of at least 50 people.
You are correct about Kentucky honoring your state CHP, as Kentucky honors all permits. Check out the "Kentucky Gun laws" thread for any more information. I included the statute numbers so you can print off that page to carry with you. There is also other documents supplied by other members of the forums.
If you have any problems in Kentucky, we will be glad to help. It is a fine state and I hope you have a grand time.
Any chance that you want to share with us the rout you will be taking? Maybe someone can meet you for a M&G. We have members that live in and around Louisville and you probably will be passing just south of Ashland (where we have the Eastern Kentucky M&G).