Stayed at a Hampton in the Midwest once. They had 6 Diamond spots. One weekend the only spaces occupied were the 6 Diamond spots so I couldn't park there. No biggie, next spot over was just as good. Went to front desk to get some water and casually mentioned, Wow, lots of Diamonds here this weekend. front desk clerk, said, nope, only 1 here (me). I just said, interesting, I'm the Diamond and didn't get one of the spots. Also said no biggie. We both chuckled about it. So some places even if the parking lot is totally empty people will take the spots.