Here are the terms of the Hilton program,

"3.A "stay" is defined as the total number of consecutive nights spent at the same hotel, whether or not a guest checks out and checks back in again. Specifically excluded from the definition of "stay" are the following types of ineligible stays: wholesale/tour operator packages; contracted crew rates; travel agency discount rates, packages exclusively for casino player card holders; Team Member Travel rates, Hilton Family Travel Rates; stays secured utilizing Hilton Grand Vacations Club and Hilton Club timeshare programs, Hilton Grand Vacations marketing packages with a sales presentation requirement; complimentary or barter rooms."

From what I have been told is that Hilton leaves it up to each property to decide if to award points or not.