When we flicked two fingers, he came back again.
Surely that was an invite for a second pass; why else display two fingers!
I would put money on not a single high-vis vest* or saddle cover between them and the 'second pass' was probably a turn to look back and ensure nothing further to report after a late spot.
*Despite the RAF donating hundreds of high-vis items free via the Equestrian Society. Hopefully this will concluded appropriately soonest although the feds may as well set up a permanent det at Odiham they are there so often.