Same here. Always been told no by Floral and Gifts, even when staying CL.
Even with online check in and text room notifications they make it tough to have anything waiting in your room.
I had some success with doing the Birthday celebration this past March on arrival day but had to time it well after our arrival time. I tried to time it at a time after we planned to enter our room, then leave and go out to do something, so it would be there when we came back. If I remember right, the key was we needed to have entered, and accepted, our room.