10W+ of IR LED's would be highly visible. By referencing BMW/Audi,
@texas_star_TM3 clearly meant one of the "night vision" FLIR systems that does not need artificial illumination.
It's all irrelevant because Tesla clearly did not add a FLIR camera or IR headlights when they removed radar, so cars made today are going to have to auto high beam when on AP (and it makes me wonder how AEB's performance changes at night when the driver doesn't use high beams). If they had IR emitters, they'd already be using them
One side note- IR modes in cameras remove color information. Tesla uses color (cones, red lights, etc). They would need to remove this color processing from their algorithms.