I found this information on another website. It's just rumor right now, but has widespread implications so I thought I would share it. In the past many scooter companies have had the ability to drop off a scooter so it was waiting for a guest upon arrival. It appears that soon they will only accept delivery from approved scooter companies. If your scooter company is not on the approved list they will still able to deliver it to you at WDW, but it must be a face to face hand off and paperwork signing. They will also not be able to store the scooter.
"Starting November 1, Disney will only allow approved companies to drop off or pick up scooters at the Bell Stand or Front Desk." The list of scooter rental places approved has not been announced."
"To be clear, Disney cast members will not assist with the rental process by temporarily storing scooters from Walker Mobility or other "unapproved" vendors."