We're heading to Disney in less than 2 weeks and we plan on getting the DAS for DD. We're staying off site and are planning to be in the parks from 1/25-1/30. Is there a way we can go to Guest Services when we arrive the evening before to set up the DAS? I assume we could go to one of the parks, but then we would have to pay for parking. It might be too late when we get in anyway, but I'm trying to save some time in the morning if I can. Any suggestions?