I'm in similar situation to you. went to court, but they basically making me collect kids from school, to avoid conflict at ex's home, e.g. you turn up after work and she refuses to let you collect kids.
Sounds sensible Bill, its the reason many pick ups and drop offs happen at school. Parents can make the school aware of the order and the school will ensure the child is handed to the relevant parent as per the order.
Lance, in relation to your work, you have a legal right to put in a flexible working request on the basis of childcare. So you could request to finish early so you can pick up kids. However in return you would either have to make back the time on other days or start earlier or reduce your working hours. Don't know your circumstances so you would need to consider if feasible, take a look at your HR policies.
An alternative is to request and agree this informally with your employer.