See this.
http://www.cnn.com/2004/LAW/06/24/dorf.police.id/index.html
I’m not a lawyer and have never stayed at a Holiday Inn.
My gut says you didn’t have to comply, but she would have made your life miserable. Handing the ID over makes sense when a cop is breathing down your neck. Neat on the house. bummer on the car.
Actually this is the third time I've been requested to produce a drivers license (or ID) when I wasn't driving or doing anything illegal.
First time was similar to the thread linked above, I was walking and officer stopped me for "fitting the description of someone in a domestic battery call" where you going? what are you doing? etc etc. Second time I was biking and officer pulled me over. Both those times I refused.
This time I just didn't want to deal with it.
Your link was 2004, supreme court decision was after that date.