Availability and specials in mid September?
Not sure but definitely worth a call to the hotel. We want the 1st time in January and the rates were half the summer price.
They have really good rates after Labor Day.
I'm not sure as we went in June. But my in-laws have stayed at other times of the year and has no trouble finding a room. I think the off-season is a little easier.
Get an answer from Tiffany's Motel staff and past guests.