I have heard, and heard sweared to (by someone who did a ride-along and a trusted source)... so I don't think it's true (I'm a pragamtist of the first order) But I thought I'd confirm it here.
Is it true that a radar gun, pointed at the A/C vents in a LEO's cruiser, will cause an abnormally high readng on a radar gun?
Please understand that this ride along occured decades ago... and may have been with a long outdated radar gun from back in the days of fuzzbuster. And so, it may be long outdated and innacurate with today's more sophisticated equipment.
Rolleyes is not an answer!