Did you get/save email confirmation?
If so, you should be able to call it up on your phone and use it as your “ticket”.
Yes,I did (I think).I got something on my phone that looked like a ticket but I couldn't keep it up (because I needed to do other things) and I didn't know how to save it (thanks to technological stupidity).
I'm resigned to the fact that I won't be attending this time...but he's likely to make at least one stop next year (he made two visits to NH in '16) so I'll be sure to see him then.