Tire pressure set at "cold" before driving is not static. set it once and leave it.anyone with a tire pressure monitor will tell you the it never stays the same while driving ,generally going up with temp and speed and of course altitude but to a lesser degree.Even sunshine on a tire will raise its temp. I've seen 15-20 lbs gain while driving.
Set it and DON'T forget it but do NOT mess it. Better yet get a working TPMS and turn it on.. it will confirm accurate pressure. Chasing 1-3lbs pressure change ea day is over the need. ( Yes I guess you could say a bit OCD) As a commercial driver i Didn't even have a tire gauge for my daily pretrips . If it makes you happy though :) check away!