We are making our first trip to WDW next week. My son has autism, and is a runner. I would love to be able to put him in a stroller and use it as a wheelchair, in order to keep him from wandering off and making a scene, but we do not own one. Does WDW have them available to rent? I'm really worried about how this is going to work, because he refuses to let you hold his hand, and he is non-verbal, and will not come to you when called. So . . . if he gets away from me, I'll NEVER find him! Any info and tips would be GREATLY appreciated! Thanks!