[SunshineTheCat]

If they don't show up as green Subaru Outbacks with a bunch of bumper stickers on the back they'll stick out like a sore thumb.

[evan_]

Perhaps they can disguise the LIDAR beacon inside an IR-transparent Thule roof box.

[svnt]

I think they also have a blue 2007 Prius model.

[ttul]

If the back window can be smashed in, that would also fit Portland aesthetics.