I am on a gov't contract and my hotel expense rate is capped at that rate. Out of 70+ stays in the past year, I have been asked exactly four times to show id and I usually produce the contract which is then copied and filed away at the hotel wihtout futher question. After making the online reservation, I do call ahead the first time I stay with a hotel and make sure that the rate is accepted at the hotel given my situation. I have not been rejected at 10+ properties.