I bet that if you took the temp of your airbox while driving 65 and compared it to the temp of your airbox at idle after driving 65 it wouldn’t be much difference...As a matter of fact, I'm going to do that this week.

I'll take the Temp of the inner Stock tubes, just behind the grill.
Then I'll check the Temp after I stop and Idle for a while.

Then I'll do the same with the cone filters.
I'll let you know the difference in temperature.