"ATK (Alliant Techsystems, now Northrop Grumman Innovation Systems) is a defense contractor. The Marriott code 259552 for ATK follows the defense contractor enforcement pattern: properties near major defense installations (Virginia, Utah, Minnesota) are more likely to verify. FlyerTalk's defense codes thread notes: "Defense contractor codes tend to face more questions at full-service properties near major installations." No specific ATK denial incident documented, but the defense sector calibration applies."

"I think the generic 'show corp id' designation means show the company business card. I think a lot of us don't have them or, if we do & we're not going to an office that we'd need to show them, leave them at home. I worked for some F500s that didn't require corp ids with shiny smiling faces on them & others that did; same with company credit cards. All, however, provided biz cards when working for them."

"I swear the front desk employees are trained to resist and encouraged to lie. They try to save the rooms for members with higher status or complainers. I've booked King rooms and they'll assign me a double or a queen. The first rep will tell me they're fully booked and there's nothing they can do. But once transferred to a manager, King rooms magically appear!"