Hello, I just booked a ticket on the ALSA bus from Pamplona to St. Jean Pied de Port. My ticket says that boarding is closed 30 min before departure time. How strict is this? Trying to decide which RENFE train to book from Barcelona. One would arrive about 5 min ahead of the "boarding closing" time, but 35 min ahead of the departure time, and I'm wondering if that is cutting it too close. Thanks in advance!