Use recirculate and max cool until you get it comfortable, then turn the fan speed down, but keep it on recirculate and max cool. If you can after you get it cool enough inside then you can cycle the AC on and off but keep the fan blowing until the evaporator looses all of it's "coolness" then cycle the AC back on to get the evaporator cold again.
You can also turn the AC on when you are forced to slow down, and downshift to keep your RPM up and possibly get free AC with DFCO when decelerating.
Got stuck on that same bridge picking up an Eldorado for my 83 year old mother. God what a mess.
regards
Mech
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