Under what condition may drivers not part of a funeral procession drive between vehicles in the procession?

Drivers not part of a funeral procession may drive between vehicles in the procession when directed to do so by law enforcement. This is crucial because law enforcement officers are trained to manage traffic scenarios, especially during sensitive times like a funeral, where maintaining the integrity of the procession is important. If an officer directs you to move into the procession, it is typically to ensure the flow of traffic is maintained and to allow for the safe passage of all involved.

In contrast, other situations, such as traveling to a hospital for an emergency or responding to a traffic signal, might not warrant interrupting or driving through a funeral procession. Additionally, time of day is generally not a factor; the key element is the authority of law enforcement in managing the intersection of these traffic situations.