> Only a complete moron would think the answer to this is no. If there's no personal cost to using an extremely expensive service, every one is going to use it regardless of whether it's actually necessary. It will quickly turn into a free taxi service for anyone who wants to go anywhere near a hospital.

Okay, so why don't we see this behaviour more in other countries?

In my jurisdiction, the incentives are actually weighted towards pushing people to ambulances, as there is a €100 fee for self-referral to ED which is waived if you're transported, but while there are time wasters and frequent flyers, the service is actually less abused than US ambulances under EMTALA.