I did a search on getting "walked" and I'm going to call Marriott tomorrow. I was walked in El Paso (of all places) last week (I'm silver). It was a comedy of errors, but they did pay for my night's stay in a comparable hotel - however, it was about a 20-minute ride away and our meeting was being held in the Marriott at 8am the following morning (we checked in around midnight). Doesn't it seem if you're a silver and have a conference room booked that they'd scrape up a room?
Anyway, I'll be calling to see about compensation - thanks for the info in this thread!