"Sprint's Marriott code SPR is a telecom code. Sprint (now part of T-Mobile) had major HQ in Overland Park KS. Properties near that corridor still encounter Sprint-branded employees during the merger transition. hotelcorporatecodes.com lists SPR with "⚠️ Sometimes" verification. Telecom codes are in the medium-enforcement tier — more commonly audited than retail, less than consulting/finance. No SPR-specific denial incident found in public forums."

"I used to work night audit at a 4 diamond Marriott resort. It was me, an 80 year old valet who just slept in the cars, and a 4'11" security guard. She wouldn't check anything out because "I'm a woman. If there's someone there, they could attack me." So I, the 19 year old woman, would investigate. Guest needed towels? I brought them. I would have to go up to a computer room to run some of my reports. I occasionally had to pee, because I'm selfish like that. So whenever I was gone from the front desk, it was just unstaffed. It sucked."

"I have a close friend who is a GM at a Marriott property in a fairly large US city (top 25 metro population). Their opinion is basically, "Hey, it's business. I'm not turning away a paying guest if they don't have the right ID." In this person's younger days as a front desk agent, they enjoyed catching people trying to use a corporate rate that the guest was not entitled to. As they became higher up and saw the books, occupancy rates, etc... Corp ID's became far less important than filling rooms."