I’m sorry about this frustration you’re experiencing. I’m constantly annoyed at the variety of unsolicited emails I get and when they don’t have an unsubscribe link, it feels worse because there’s nothing I can do to make it go away... and, heck, it’s illegal (in many cases, depending on where you live or maybe where the company is).
While Hayes is using our name, from what I can tell, we’re not closely associated with this event, though they’ve been doing them for a few years. We did not - and would not - give them your email address. Tim Post wrote about this some in 2016 and the policy hasn’t changed. Heck, I’m hesitant to email people myself without permission from them.
I’m sorry about this. I think your first recourse will be reaching out to Hayes directly to complain. Here’s a guide about getting off lists for unsolicited emails. I haven’t tried these methods so your success may vary.