Warbirds, in particular, should complete the online form. Prop cards will be given out to all participants and color coded for the respective category upon registration. With any scheduled air show, there is always the problem of closed air space for those wishing to come in and others wanting to leave later. All aircraft on the main tarmac must remain until the end of the performances. Those aircraft parked in the transient parking area can leave within the confines of these established windows with the permission of the event's air boss as well as the tower.
Safety comes before diplomacy here.
The staff will try their hardest to get you in and out without delay.