the question is not how do i get a direct vent gas dryer , basically the inspector is telling you " good luck " as that is the only kind off gas appliance that would be compliant to use in a bathroom , toilet room , bedroom and most likely you will not find a direct vent dryer out there ( not the inspectors job to tell you where to get one ) It's very clear in the IFGC that you cannot use the atmosphere in these locations as combustion air therefor the only gas burning appliances that would be allowed ( except for very small ones see exceptions in Prohibited Locations ) would be direct vent appliances ( water heater / furnace / boiler are a few appliances that are offered as direct vent commonly ) the answer to a dryer in these locations is to go electric , one would still want to take venting into consideration but at least you wouldn't be playing with a carbon monoxide issue.
As far as i know all araes are to comply to the IFGC , if a municipality wants to go stricter they can ,but they cannot be more leaniant than this minimal code. Carbon Monoxide and venting issues are a real threat anymore as houses get more and more sealed up due to energy codes. Wich side of Darwins theory are you on ?