Who gives the signal?

[MadCityRef]

A14 is driving the lane. Stops, travels, gets fouled.
Simultaneous whistles: T has the travel, L has the foul. L begins walking to the table and giving the numbers when T intercepts to say the travel occurred first.
Who should give the signal for the travel and the throw-in spot?
When a calling official receives new information from another referee (i.e., a tipped balll OOB) the calling official changes his call and gives the signals, but we weren't sure in this situation.