Should be good, so long as the rescue crew stays at the showground instead of gallivanting off home whenever their unit pagers go off...
Remaining crews of the local SES LHQ, not at the Showgrounds, will attend to any taskings outside of the Showgrounds area.
The SES Units who have vehicles rostered at the showgrounds area have additional vehicles in their LHQ to provide emergency coverage.
If it is a large incident, then normal SES operating procedures will occur and another SES Unit will be dispatched to assist the first responder.
From listening to the muti-agency talkgroup and SES SHQ talkgroup via 'Scanner Monitoring in SA website', the SES crews have been quite busy this afternoon. I believe several ambulance escorts and assist St John with a spinal casualty.