Staying in Mary E before Warner Field Opens?

I learned last year that I should show up a few days before the festival, but I don’t have tickets for TP this year (thankfully got WF). Since WF doesn’t open until Wednesday, can I get a Mary E camping ticket just to camp there Saturday through Wednesday? Does anyone know if they run in the shuttles from Mary E all week, or just once the festival starts? Any other advice or options for making this work would be awesome.

Shuttles start wednesday morning. Thats all I can answer.

In the past we have just driven into town before Wed. I always try to get there Monday.