I see another TM3 almost daily. A white one is some where in my neighborhood and there are at least 2 others (red and silver) in the parking garage at work. Some days I see all 3 and another one or two on the road.
I drove from Seattle south to NorCal on Wednesday and saw 5 semis carrying almost entirely Model 3s headed north...and that was just the semis that I saw go by. Often you cannot see the northbound lanes from the southbound lanes, and even more likely went by when I was charging.
I see about 1-2/day driving about 10 miles in the NW quadrant of the city, mostly Wallingford, Ballard, Upper Queen Anne, Green Lake. I'm actually surprised I haven't seen any on top of Queen Anne though. There are a ton of Ses and Xes up there.
Just drove my new model 3 (delivery a week ago) from Auburn to Bellevue and was around Bellevue for a couple hours. Saw 7 others in that trip. 5 Black, 1 white, 1 red. For as popular as MSM was early on I’ve only seen one other one in person in the last 8 months.