How long can cooked, refrigerated chicken breast stay out at room temperature?
It's very different if food starts out hot, as in fresh out of the oven, or cold, as in came out of the fridge.  There is much more differential between oven temperature and room temperature than between fridge and room temperatures.  That means that hot chicken will cool considerably faster than cold chicken will warm up.  The slope of the exponential rate of change will be much steeper when starting with hot chicken than with cold.

in short, you get a lot more time in your situation than the canonical 2h stated for the hot chicken.