The new speed measurement sign on Iris is stupid

So recently someone put up an attachment to the speed limit sign on Iris just east of Broadway that displays the current speed of drivers, pretty standard. But the genius in charge decided to put it directly east of Broadway, where every single car has just turned onto Iris and is still accelerating. I doubt this sign has or will ever display anyone going above 30 mph, in a 35 mph zone.

So what's going on? Who decided to put this sign in an obviously useless spot? Putting it by 16th or 19th would actually be useful; either someone chose the worst possible spot, or the crew that put it up just slapped it on the first post they saw and said "job's done". Hopefully this is just a quick private project and we didn't spend any tax money on this waste.

(the measured speed sign is under the speed limit sign here) https://www.google.com/maps/@40.0364239,-105.2820233,3a,44.4y,101.03h,80.17t/data=!3m6!1e1!3m4!1sHMRicyUoSpClMwrlHtxrrQ!2e0!7i16384!8i8192?coh=205409&entry=ttu