under certain jurisdictions, taxes do not apply to accomodation booked 30 days or more. The problem nowadays is that the onus is on the consumer to actively know and argue for this with properties individually and there are many greedy properties who choose to keep the tax amount for themselves. And if you want spg to be involved in fighting for your rights, i think you can forget about it.

Its the same with government rates. The federal government/state government do not compensate the hotels directly. It is just like any other rate that properties choose to decide who they wish to offer. If they like your face, they can offer it to you. If you are a genuine government employee but the property doesn't like you, it can try to make things as difficult for you as possible. Including dishing you the worst room on the house because of the rate you paid.