We got these CA resident 2fer tickets in January. We used the tickets for the first time on 4/10. The ticket says it will expire 30 days from first use, so if we go again on 5/9, is 5/9 the 30th day? What I am asking is that will the ticket be OK to use on 5/9? I am kicking myself for not asking this question at the ticket kiosk. I hope someone knows the answer here. Thanks!