Let's say, hypothetically, that your football team likes footballs to be a bit under inflated. Now, you know that the balls will be in public view as soon as the refs release custody of them, and you don't want some ball boy caught doctoring the footballs on NFL Films.
It is 45 degrees outside. The balls are delivered to the referees 2.5 hours before kickoff. They are inspected at that time and must record an air pressure of between 12.5 and 13.5 PSI. They are measured in a 70 F room.
You're at home. You have your own rooms with thermostats, and possibly customized air delivery equipment.
Is it possible to deliberately inflate the balls at an artificially high temperature to measure the correct pressure (say, 15 minutes after inflation in a 70 degree room), knowing that the pressure will decrease once they spend time outside? Note that the balls are kept indoors with the refs for over two hours. By halftime they were 2lbs light, which suggests 10-10.5 PSI. Would it hold enough heat to work? How hot are we talking?