We walked back out to the road (even the quick way is not so quick, when it's the beating noon-day sun and there is no shade at all). Of course, we *just* missed a bus, and had to wait with no shade for 30 minutes for the next bus. We never found out about any organized tour packages from Chiang Mai to the ECC.
Anyways, we finally made it back to Chiang Mai, checked out a few wats (one of which featured a very horny 3 legged dog. Believe me, that's talent!) and wandered down the street where we had seen the huge market the previous day. It was now eerily empty. We made our way back to the hotel whereupon we made the biggest mistake of our trip to Thailand: we got a cab to the airport and left!