My limited research suggests you have four options.

Drive the long way to Veyo to see runners around mile 7 and drive the long way back. Can you get to the finish in time if you do this? Is this considered a good option?

Get the pass and watch the runners at Snow Canyon park around mile 16. They say you miss the finish because you can’t get back in time. It seems like the best and only spot for some sort of personal aid station where it would matter. It would also be scenic.

Cheer somewhere with 1-3 miles to go.

Or see the finish.

Thoughts and suggestions?