Harley offers (at least a couple years ago they did) leaseing thier bikes to fire departments for a ridiculously low amount. I know Taylor, MI had one. You can imagine the riders in my department were bugging our chief. Darn liability!
You would think downtown areas like New York and Chicago would look into this as a low cost means to get to the scene quicker. They would still have to wait for transport, but at least they could start the medical treatment sooner.
Here in NJ there used to be a hospital that had EMTs on at least 2 BMWs. They were police models R1150Ps loaded with EMT type stuff. I think that BMW may have loaned them the bikes. BMWNA is headquatered here.
Here in Hong Kong, the Fire Department uses BMWs for both fires and EMT. The BMW "fire bike" is pretty wild, with two large round cylinder tanks where the saddlebags would be. One of my MBA students is in the FD, so I asked him if I was correct when I thought I saw a "fire bike". He said that the one real danger is that when you use one tank, you have to empty the other tank as well, otherwise the imbalance in weight would cause accidents (it seems that they learned that the hard way).