We are planning on a trip with my brother in law who can walk but has a hard time for long distances. We thought he should get a ECV for a least a few of the days he's in the park. How does this work for rides? For example, if we're waiting on line for Pirates of the Caribbean, does he get out of ECV, park it at the entrance, wait in the queue and when he disembarks on the ride go get his ECV back? Or does he wait in line with the ECV? Or does he get in another line with all of us? (there's 3 other adults and 1 child) How does this generally work?