Blinking CEL on startup, then fine

[TiCoyote]

2012 GTI SE DSG
110k mi
Coil packs and plugs replaced last year.

Car was sitting in my driveway in cold rainy weather for a few days. I started it up today, and I got a lot of shimmying and a blinking CEL. Then I put it into reverse, and as soon as I started moving, the CEL turned off, and the car ran fine. Was there condensation or moisture in the system?

Thank you!

 

[BudgetPhoenix]

Scan for codes to see if there's anything else besides misfires. Cold start misfires can be attributed to a lot of things, especially carbon build up.