VW engine coolant into the engine instead of oil

Have you run the engine yet. If so, probably bad news-tow, don't drive to a trained professional to check for damaged gaskets/seals, block cracks, etc. Caused by this mixup, if not, may get by with a thourough draining, including oil pan removal, and using something like a shop vac with special attachment to get into every nook to suck out all the antifreeze, and talk to auto parts store, they may have a product that could help remove any leftover antifreeze you can't reach. It still may have damaged seals, etc.