Orange county does issue citations to Disney bus drivers while driving the bus, but It usually needs to be more than a couple MPH over. I persoally saw a DTD driver get cited while on the bus. The sheriff pulled into the load zone to write him up. It was for 50 in a 35 on Buena Vista Dr in front of Planet Hollywood so it does happen. They will cite other moving violations as well. FHP will cite a driver if an accident on property was his fault also.
Why would you want to know this?