Its true that nitrogen has more resistance to temp changes, there is just not as much compared to regular compressed air which happens to be full of moisture, which is why your air pressure in your car tires would flucuate depending on outside air temp or seasons. In aviation we use dry nitrogen, but I still see effect of temps on tire pressures...just not as dramatic. For example an aircraft tire will be filled to 150psi at room temp. after a couple landings the brakes while heat up that area and the tire pressure will increase to around 160psi due to the increased temp of the friction braking.