Stop in for a cup of coffee
Well the A/C has been running fine for the past few hours with no further signs of freezing up. Near as I can tell, it must have been the dirty air filter blocking the flow. I still think the refrigerant level probably isn't right but I'll save that for another day as long as it keep working.
I've got the pest control guys coming out tomorrow to deal with the yellow jacket ground nests. I found a second one in the backyard. Buzz up tonight little yellow stinging bastards for tomorrow you will die...all of you...and your little Queen too!