Living in Thailand the laws are a little less strict here.
Last cold season (relatively cold) I had to push my friend Boom about 40km on his steed up through some winding mountain roads and down some messed up hills because his throttle cable snapped.
We have used a Blackbird and a ZX-9 to bump start the back up truck before as well - I know the back up truck should be there for us but when some bloody idiot leaves the stereo on all night it can cause problems in the morning.