A hint from the wise (me, a lifelong mechanic):
Whenever you discover a "whole puddle" if anything, leaking from YOUR car, you temporarily discontinue your travel plans. You properly check your fluids (engine oil, transmission fluid, engine coolant).
Engine oil, when fresh, is golden colored, turningbprogressively darker brown, then black with ago.
Automatic transmission fluid has historically been a pinkish/reddish color that gets brownish with extreme age, and black when your transmission is worn out and slipping.
Engine coolant has been several colors over the decades: gteen, orange, yellow, even blue.
With a sudden large leak, you check these fluids. Each is done in a particular way.
Engine oil: engine off for several minutes parked on level ground.
Auto trans: engine idling, engine hot, parked on level ground.
Engine coolant: best checked cold, but recently driven, with care if opening the radiator cap.
Summertime use of the a/c produces a lot of water, if humid out.