....get this guy showing up (see link below ambulance picture).
In this rig.
Link
Apparently, not illegal. He doesn't transport. He doesn't ask for money. He monitors the radio frequencies in Calgary, and will show up at the 'non-emergent' ones as a 'skilled first aid-er (advanced first aid)/first responder.' He alleges he only shows up at calls that are 'minor.'
That's going to end really badly one of these times, I'm thinking.