Was on the news the other morning with a video of the incident, he also damaged or attempted to damage a foreigner's motorbike in the same location, I fight ensued and the Egyptian ran away.
Chiang Mai Transport office, if you have a yellow house book you cannot transfer ownership of a motorbike or car without having a pink card, as I found out 2 weeks ago when buying and selling a motorbike.
Bit off topic I know.