Just got the drive shaft replaced, car shakes at 70 mph but not at any slower speed

2016 Honda Fit Auto 130k

So the car runs fine at anything below 60 mph. Above that and especially at 70+, I can feel the tire wobbling / steering wheel shaking slightly. The alignment is ok however (the car doesn't pull either direction).

So far the dealership has been pretty cool about working with me, I guess my question is just if I bring it in to them I don't want to have them say, "well we don't notice the issue" or "well that's as good as it gets".

Another question would be is there an easy way to document the issue? I was thinking of getting a friend to film the wheel while I'm driving on the freeway but that's kind of a PITA.

Also how many hours would it likely take the shop to perform the most likely fixes?