Sounds like nothing happened. There was a large showing of racers and fans. The agenda was changed to Jake Brake Noise. Maybe this gives them time to make some adjustments.

Jake Brake noise is more irritating, and almost impossible to stop.

It's clear Jake doesn't use brakes, So what's the problem?

But hay we will spend Thousands of $ to put up sign that says Do not use Jake brake.

We all know those signs do little, but it is even deeper to keep drivers from using them. I handle Energy Industry (and Marine) insurance claims. Everything from big deep water projects, subsea pipelines and equipment. . .to over the road drilling and fracking vehicles. Some years ago, I did one up in Michigan where a frac support truck ran off of the road because he used his Jake brake and underestimated the effect. Of course the company had a policy of no Jake brake use. . . guess they should have disabled it. . . .

Pardon my ignorance, but whats a "jake brake"?

Rather than discuss it on here, just Google jakobsbrake.
Bob

It's when a semi gets off the gas then sounds like it's hurling chunks

Jakebrake Sounds like me after beeeans and coornbread

Using the compression of the engine to slow the vehicle. Makes a noise like no other. Kenny Wallace makes that sound every time he talks, Probably all his fault.