2000 E320

I had over 2 years of trouble free service from this car, and in one day it's trashed. See my other post regarding a bad ground effecting my lights and engine quitting.

It turns out that the turn signal cuts the engine out too. I was coming to an intersection to make a turn, put the signal on and it cut the engine. I had traffic right behind me and I panicked a bit and threw it in park to get it started again. Turns out I was still rolling , maybe 2 mph or so.

Now I can't move the shifter out of park. It won't budge. Any thoughts on this?