Correct. I was an EMT, and I would have been in no legal jeopardy for driving by an accident instead of responding, if I was off duty or outside my response area. (However, I always did stop and help if other responders were not yet on scene or looked like they could use more hands.) OTOH, my EMT license meant I was not protected by good samaritan laws. As DINKDINK pointed out, if I "helped" beyond the scope of my training, I could have been sued.