If you are referring to tailgating as in for college football, that's whole another animal where you have 10-15 times the fans of a normal college basketball arena attending and where college football is built around tailgating.
Tailgating for college bball doesn't really exist. I've been to 20 college campuses (DII to ACC, SEC, BIG Ten, Big East, Conf USA, etc.) over the past 20 years for college basketball games and I don't recall A. Much of a huge tailgate atmosphere in the parking lots before games. B. Never seen a food truck outside a college arena prior to a basketball game.
For college bball - Usually cold as crap out so students aren't gonna stand around tailgating for 2 hours prior to a game with the idea of a couple food truck overpriced empanadas or chicken over rice is going to entice and energize them enough to come out 2 hours prior to a game. Plus, this generation of Mason kids are soft and don't really seem enthused to be at the games and would much rather be on their phones or playing video games an hour or 2 before a game. I haven't seen any crazy die hard students in the student sections that groups would even remotely reach out to and try to encourage hosting pre-game tailgates. Plus don't we offer them free pizza a couple times a year inside the arena? Therefore, outside of Homecoming tailgating with groups of students or fans...It's just not practiced here anymore for home games.
The normal game attendees are alumni, casual fans in the community, alumni families, community groups, etc. where Mason wants to provide really overpriced concessions to them. The other offering is a pre-game meal in one of the arena hospitality rooms, where they are providing an elevated fan experience this way and still making money from people's hospitality / Patriot Club donations. Or some game attendees prefer to grab food or drinks over at Velocity Wings, Oh George, or Fat Tuesdays before our games and walk over.
I'm not trying to bash your idea but you have to look at it from all perspectives, and Mason is notorious for doing noting to the bare minimum with any and everything sports related. Food trucks would cut into these offerings mentioned above and from a logistical and a revenue generating standpoint from the higher up's at Mason..... bringing in food trucks doesn't make much sense. Marvin and his team have bigger hospitality ideas focused on inside the arena to enhance concessions and the fan experience.