Agra. If you had followed the NAS educational material you would have been monitoring the CTAF if in the approach and departure airspace of the airport. You would have heard the taxiing call and given a position report on the CTAF if necessary.
ATC would not have been involved and with less frequency loading may in future have been able to provide a class E separation service to the IFR aircraft when IMC exists .
And Agra. Don't try that in any other country in the world . You will end up with licence action.
Tin, And are you sure there is no requirement for a mandatory radio VFR aircraft above 5000' to monitor any particular frequency? Does everyone agree?