I looked around to see if anyone else had this problem but couldn't find anything. I don't remember having this problem with my 06 WRX making me think it's a brakes problem. Anytime I get my car wet (rain snow or even a car wash) I park my car in my garage and in the morning, I release the parking break, throw it in reverse and the car is stuck...I have to give it gas and let the clutch go slowly basically grinding the clutch away just to make it unstick. It is to the point I am afraid of just launching the car out of my drive way once it unsticks. And once it unsticks, the car is perfectly fine driving. Anyone else have this problem specifically STI owners but it might be with the WRX.
Considering I don't know what is causing the problem i just threw it in the general maintenance thread.