This from The Bloodhorse a few minutes ago:

When the infield opened at 8 a.m., there was no rush through the tunnel like in previous years. The track changed its policy this year, not allowing patrons to bring their own alcohol in, and the crowd, at least early, was considerably smaller.

Word on tv was instead of the typical thousands lined up, the estimate was less than 100.......

I'm sure the infield will be a whole lot more fun with the 'shroomers instead of the drunks.