My buddy is a lifetime Platinum Rewards member and he states that he never has to pay for parking or day use at Marriott properties. Are these undisclosed benefits or is he just lucky? Are there other perks?
I think your buddy is giving you some pie in the sky stories. I've been Lifetime Platinum for a few years and have NEVER had free parking when the hotel charges for parking. Maybe your bud only goes to places that have no parking fee?
I have had parking fee waived a few times, but not many. Quite a few properties have a third party manage their parking lot, so I doubt that your buddy's story holds water. I don't know what day use is.