Just before you arrive, call the lodging again and ask what the best rate is for the evening.
Hotel managers are fully aware that an empty room generates no revenue.
If the rate is not better, simply show up with your reservation as planned. Make sure you're heading to the right hotel. This may sound obvious, but in larger cities where chains have multiple properties you need to know whether you're heading to the Heavenly Hotels Downtown, the Heavenly Hotels Seaport, or the Seaside Heavenly Hotels Resort and Conference Center. To be sure, keep both the name and address handy, and ask about local landmarks when booking. Make sure you are in the hotel's computer.