My last live appearance at Hawthorne the A/C was on in the clubhouse not the grandstand side.
Now here is the caveat:
The A/C was performing at about 40% of capacity. It was struggling to keep up with the heat.
If you stood outside during the race then stepped back inside the 2nd floor clubhouse you definitely could feel the cooler air but the air was only slightly cooler.
After staying inside a few minutes the air felt warm again.
I'm not saying the thermostat was turned up to save money I just think the old system needed some new parts.