I'm noticing more road noise now @ 8k. I can actually hear the contact between the tires and the pavement. Seems to be getting progressively worst. Anyone else?
Normally tires get more quiet the more miles you put on them. Uneven wear can cause additional noise. Have you had a close look, especially at your rears?
make sure to check the inside edge of your tires. very hard to see unless you climb under car with flashlight. potential for uneven tire wearwhich can be fixed with proper alignment. you may need new tires at this point. let us know how it develops..
Check for cupping or scalloping on the inside edge of your rear tires (I just opened a thread on this yesterday). It resulted in significant tire noise and Tesla Service confirmed it was an alignment issue that caused it. I just had an alignment today in Tampa. I have 8,200 miles as well and will have to live with the noise until I get new tires, but hopefully the root cause has been resolved.
Tires get noisier as the tread wears down. That's why new tires are almost always quieter than the old tires you took off.