A little follow up after getting my car aligned at a local alignment shop. As I suspected, the front was toed out, to .24", almost 1/4". The rest of the alignment, camber, caster, and everything in the rear was spot on and near the middle of the spec. The car is now set to .04" of toe in and no longer wanders, and has better steering return to center. If I ever need to get it aligned again, I think I'll ask the mechanic to set it to 0 toe to just a dash of toe in; for a street driven Model 3 I think that would be about the best compromise.
What surprised me is that the spec for the Model 3 for front toe is from .1" of toe in to .2" of toe out, so my car wasn't very far out of spec. .2" of toe out for a street driven car is very unusual in my experience, and none of the roughly 20 cars I've owned in the past had a spec like that. Most generally called for a little toe in, and the spec would sometimes allow for a very small amount of toe out, like .06". Toe out of .2" will cause increased tire wear, and makes the car less stable, okay on a race car perhaps, but generally not desirable for a street car.
P.S. My local alignment shop only charged me $77.50 since the rear alignment needed no adjustments.