I'm confused by this statement.
Unless there is more than one New Jersey EMS website, the rules that I found state that anyone can come into the state and start an ambulance service. That includes using paramedics.
I could not find any restriction to paramedics must be hospital based or have to have 2 medics per truck. If I've missed that, could you please direct me to the regulation.
I also saw that the term volunteer in NJ referred to a service that did not charge patients for services provided. It said nothing about you personally as an EMT, working for free.
Who's paying for the fuel and supplies? If you are charging the patient for the service, then by NJ law, you are not a volunteer service.
As to your statement that dispatch determines whether a call is BLS or ALS, what if they are given incomplete or incorrect information? It happens all the time around here. And I'm sure it happens elsewhere. Why play the muck around with BLS having to call for ALS? It's a waste of time and resources and delay of patient care.