On our family trip we will be taking my 70 yr old Mom with us. While in otherwise decent health, she will not be able to walk the day without renting a scooter. 1. Can we do this when we get to the park or does she need to do this in advance? 2. Where does she park it if she gets on a ride? 3. Towards the end of the day she wont be able to stand for long periods of time, (her hips bother her after sitting/walking for the day) .. what happens then for rides when she cant stand in line?? Thanks in advance!!