I have aircon in my truck which doesn't work because a previous owner nicked the condenser.
I'm not sure if it's a good idea when it's ludicrously hot if you're jumping in and out of it all the time?
Did one job yesterday afternoon for 90 minutes at 38c and left the last job until 7:30pm when it was still around 26c but much nicer.
Popped down the beach after that with my son to watch the Moon rise.
We really do live life in the fast lane down here