Cool air, like it’s cool because it’s just blowing or cool air like it’s just not cold enough? Since it ran for a few hours and it’s still 95, I’m guessing it’s not blowing any conditioned air, it just feels cool because it’s moving.
Is the compressor (the outdoor part) running?
Also, since it’s been hours since you turned it on, even it it’s not running now, put your hand on top of the unit and see if there’s heat pouring off of it like it possibly was running and it just isn’t right now.
Since I likely won’t be awake/around to get the answer to this question…
Go down to the basement (or wherever the air handler /furnace is) and see if there’s water coming out of the drain. If there is, hell, even if there’s not (since you have someone coming to look at it*), turn to T-stat to Fan switch to ON and let the furnace fan run for an hour or two and see if that makes a difference. Keep an eye on the drain and see if water starts pouring our after a while. If you can, live the AC off while you’re doing this. If it’s really humid out, the coils may have frozen up as soon as you kicked the AC on.
There’s several other possibilities, here, but this is the easiest thing for you to fix yourself.
Also, while I’m a believer in turning your AC off (or UP anyways) while you’re at work, when it’s THAT hot out, you really can’t do it. You’re AC is really going to struggle to bring the house down from 95 degrees, and if it’s humid out (and in the house for that matter), that may be the problem. Hopefully that’s all it is and running the fan for a bit will thaw out the coils.
If that’s the case, maybe when it’s that hot out, instead of turning your AC off when it’s going to be 100+ out, just set it to, say, 85 or so. That way it runs a little bit during the day and doesn’t have to work so hard when you get home and (more importantly) keeps the humidity in check.
*If someone gets there before while you still have the furnace fan running, say “I was thinking maybe the evaporator might have been iced up so I turned the compressor off and turned the fan on to see if it would defrost, I was just about to see if the compressor will kick back on” and then turn the fan switch to OFF and turn the AC back on. He’ll be impressed with your mad HVAC skilzz.