Stand by ACT with no seats available

<p>Hey,
I want to take the upcoming act in June, but I got lazy and didn't sign up for it :(. It says that there are no seats available, but if i get there early, as in 7-7:15, will I be able to take it through standby testing? First come first serve, right?</p>

<p>Thanks,
Kirby</p>