Isn't one of the requirements of 505.01 that the weight must be a 5w40? So, I don't see how the 30wt or 50wt meet the .01 spec! They're probably 505 but not .01!
You can find Schaeffers, Amsoil, and QuakerState 505.01 oils, as well as all the fancy brands, online if you don't want to visit the dealer for your oil.
There are a couple of non-505.01 UOAs used in PD-TDI motors here and at TDIclub. They were as good as the 505.01 oils. So, I wouldn't fear using ANY full synthetic 5w40 oil as a top off in an emergency.
If Valvoline claims its good for 505.01, I wouldn't fear using it. But, I would definitely print up the oil's datasheet and keep it in the glove box. Also, since one of the .01 requirements is long life, simply changing a non-OEM-approved oil out a little earlier would be smart.
You also have other things to worry about.
Intake manifold buildup is an issue. Install an oil catch can. Provent, or any CCV filter, is worth looking into.
And, since its a diesel, you should use a fuel cleaner and lubricity additive always, and antigel during the winter. I won't preach about which brand is best but find something that can be purchased in gallons, and measure an appropriate amount at every fillup. If carrying a gallon jug, funnel, measuring beaker is a hassle, feel free to refill some FI cleaner/additive bottles and keep several in your trunk for those fuel fillups.
Anyone know if VW is finally installing MAFs that don't fail a week after the warranty expires?