No I never pumped up the tires.Ok, I misunderstood. So you changed mounts and tires after vibrations started. Did you pump up the old tires before vibrations started? Inflating soft tires can make a big difference to ride.
Sounds like the roads in So Ca are a challenge. Maybe even after a front end refresh, those roads would still reveal the true nature of the R129, along the lines of what Brauhaus suggests?
I second replacing the ball joints and bushes as @FATHERTIME suggests, but probably time the front struts and top mounts were replaced as well.
I'm starting to think its the roads. Drove my dad's 2016 Camry and was feeling similar vibrations(just like me, vibrations only on the freeway where it's NOT blacktop, streets are perfectly smooth) but slightly minimal.