Both 2019 FL Cascadia's we drove, to set the Opti -Idle, once parked, ya hit the cruise button, it would idle near 900 rpm's, then in back bunk area where the controls/thermostat are, ya hit any button, arrows up or down, any of em. Then you'd would see in seconds or so, the red and amber check engine dash lights start to flash , like when the truck would normally be near shutting down....Then the rpm's would settle down,to about 700 rpm's, and those flashing lights shut off, and Idle is set to run.....
Now sometimes, the dash a/c knobs will act stupid, and not open the correct vent blend door, We'd have A/C on, when out of the blue, it would blow warm/hot air driving down the road. The reset procedure is, turn 1st knob(blower) fully left........... turn center (temp) knob fully right. .............3rd button (bunk) don't matter.
Then you hold BOTH 1&2 buttons in for a bit, until both red lights start to flash fast,then you stop holding em in. the red lights will stop flashing staying solid, and it re-calibrates the blend doors, to function properly again..... We had this happen 2 or 3 different times, on our last truck....A few times on my 1st 2019 FL.
Did you look around in your truck for the big thick maintenance manual, most newer trucks have em stashed unless, someone before you decided to steal em ??
Speaking from 28 years as a cop, there are nuances that YouTube lawyers dont discuss. The terminology in most state statutes is along the lines of "drive or be in actual physical control of a motor vehicle while under the influence of alcohol, drugs, or any combination to such a degree as to impair...". Keys in the vehicle have been held by MANY appelate courts to constitute APC. Keys in your pocket? Easier to prove, and intent is NOT an element here, for the most part these are considered per se offenses. Once again, Pack Rat is right on target. Leave alcohol for home time. Read your outfit's alcohol policy carefully, you may find some surprises in the fine print...
No International I was assigned had the Optimized Idle feature, nor any alternative. If it will not idle for longer periods, or if the parameters are set to idle continuously only at certain temperatures, there's nothing you can do that I'm aware of. You may want to try a Google search, or try YouTube.
As suggested before, I would first make a call to your company breakdown or road service number and find out if they have any alternatives.
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I've asked around, and got 'nada' info. Have YOU had any luck or revelation(s?)
Are you driving for Western Express now? Wonder if someone in their Facebook group could help you. They're a pretty active group.
Best wishes, either way~!
~ Anne ~