Yup.
The worst was the old Venetian book before Cantor took over. They wouldn't honor boxing lines that were on the board and would only let me bet them after they shifted the line just for me, keeping the original line on the board for everyone else. When I tried to bet NFL props they refused to let me know what the current lines were.
Fortunately, they didn't communicate with their other book at the Palazzo, so I could get my bets in there.