1999 Honda Accord Timing belt

Just had my 99 Honda Accord LX timing belt (along with water pump, crank shaft, and a few other things) replaced at one of the local garage yesterday. I noticed some white smoke coming out of the exhaust, I took the car back to the shop immediately and the owner of the garage (an Afghan guy) said there are nothing to worry about, if after a few days, I still see white smoke/steam coming from the tailpipe, then I can just bring the car back and he will check it that time. Well, I drove about 20-30 miles today and the white smoke is still present, but a little less than yesterday. Sinced Monday I'll need the car to get to work, I took the car back to the shop and the owner told me to leave the car there overnight and he will take a look at it tommorrow. While there, my wife also merntioned to him that we found a few small drops of oil underneath the engine (driver side), this moring (no oil leaks prior the timing belt replacement) and the owner become irritated, he told me go and have a Honda Dealer check this out, he said we are the first one to complain in his shop (which is not true, my wife and I saw another couple were complaing to him yesterday afternoon on a radiator repairwhen we were there to pick up the car). He then called my wife a "pain in the neck" ...

Question: is it normal to see some white smoke after a timing belt replacement? From what I have read on the internet, this is mostly likely caused by coolant leak (into cylinder), I don't think i have a blown head gasket. is it possible somehow when he was replacing the timinig belt, water pump, etc. some antifreeze got into the cylinder, generated the white smoke? If so, once the coolant in cylinder get burned out, am I correct to assume the white smoke will disappear?

I just had oil change right before the timing belt replacement at Vololine. They did 20 point inspection and there are no oil leaks discovered at that time.

thanks