If they served it lukewarm people would sue them for “quashing their expectations about being served a hot cup of coffee”. This is ridiculous.
Maybe they'll serve it cold and leave it up to the customer to heat it up him/herself with a special heating element in the car?
It should be enough that Mac's wrote on the cup, “Hot drink” or maybe the stupid oafs can't read?
Maybe they could issue a special burn proof bib?
Next thing you know they’ll be suing Mac's for the doughy buns stuck at the top of a customer's pallet?
Things have gotten out of control.
They should serve coffee as a lump of ice, with instructions on how to microwave it into hot coffee again.