Musical rumble strips

Monello

Smarter than the average bear
PREMO Member
I'd like to see 1 that tells people they are going too slow in a particular lane. Especially those that camp out in the hammer lane, then proceed to do 10 under the limit.

 
I ran across some of those in PA in the 80s. They played the 5 tones from Close Encounters. 1st set was slow, 2nd set was much faster between notes.
 
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