OMG What just happened?

[Lordblood]

I got coolant from Porsche themselves, to whom I specified my car and model and year. I used the coolant today to fill the tank, and I had to go to a meeting after that so I went there. On the way back just as I stopped in my garage there was a big crackling noise that lasted about a minute and I stopped the engine. After this there was a small amount of liquid that poured out of the car, it doesn't feel like oil, its much more watery.

I hope this isn't catastrophic, I hope its not the engine giving out, what should I do? It's Saturday so no body shop is open.