Wait... FitH cars aren't red?
I know I'm getting Sometimer's Disease, what with having first visited SDC over 35 years ago, but if anyone had asked me, I'd have told them the cars were red.
I understand the reasoning behind banning loose or handheld items. In an ideal world, each person would be responsible for keeping up with their own stuff (and any damage it caused if they didn't), but this isn't Galt's Gulch. In today's world, if someone's $2,500 pro-sumer HD camcorder flies out and gets smashed on the ground, they'll sue SDC over it. And if it gets smashed over someone else's noggin,they'll both sue SDC. "Because that's where the money is", to borrow a quote from Willie Sutton.
The answer for visitors who wish to actually take responsibility for their own stuff, is cargo pockets. "Nope, nothing loose on me. It's just as secure as my wallet and car keys!"