Spend some time in Gettysburg PA. They have awesome walking ghost tours. I stayed alone one night in the Best Western Gettsyburg Hotel http://civilwarhotel.com/haunted-hotels/gettysburg.html. It is a lovely hotel, with lots of history. I was so "scared" just by the thought of being scared, that I had the most enjoyable "unrestful" night's sleep I have ever had. I swear I saw Lincoln hovering over the wall near the bed! Give it a try sometime, it is worth it!
Also, The Olde Angel Inn in Niagara-on-the-Lake, Ontario, Canada http://angel-inn.com/ It is haunted, very old and historic, the pub is so delightful and you will feel the "fright" if you sleep there, even thought the hauntings stem from the basement!
I can't say as I have ever been in a haunted Marriott, but I do like TJC New York's story, I think I would have packed up and left with a note like that taped in the elevator!