oil in the coolant and vise versa.. :(

[Eastcoastmod]

Had an oil change done three weeks ago. Dumbasses put in too much oil. The first time I put the pedal down and brought the revs up. Poof white smoke. I assumed the Air oil Separator must have some how self destructed so ordered a new one. While I waited I continued to drive the car but like an old geezer. A few days later my coolant light came on and the car got hot. Put in some coolant and tried to diagnose.

Here is what I found.
Oil in the coolant reservoir...chocolate milk and a lot of it.
Drained the oil...chocolate milk as well and this oil was only a couple of weeks old.

Is it possible that having too much oil ...say half a liter to a liter extra could have somehow damaged the AOS and the oil cooler at the same time?

Or is it more likely that the AOS was slowly starting to go but the extra oil caused it to rear its ugly head and the extra oil pressure blew the oil cooler?

I'm hopeful that this will be an easy fix.

I'm terrified the extra oil pressure may have somehow blown a head gasket.

2001 boxster S still runs and idles fine..only has issues if |I try to bring the revs up under load...reving in the driveway for example does not produce any smoke.