Walt Disney World Resort (in Florida):
Disney Housing is unable to assist with jumping a dead car battery while it is on property.
If you have a roadside assistance service (such as AAA or something similar through your car insurance provider), you are allowed to sign them on to property as your guest to allow them to provide assistance. The same policy goes for towing companies if your car needs to be taken off-property in order for it to be repaired. Inoperable vehicles are not allowed to remain on property for safety reasons.
Please keep in mind that all guests signed on to property must be accompanied at all times and must be off-property by 1 a.m. if they are a non-participant.