Bah, I should have mentioned to add a Wait here:

Page 1
<>Move Event: Woman #1 (wherever)
<>Wait Blah Seconds until she disappears
<>Timer 1 Operation: Set to 45 seconds
<>Timer 1 Operation: Start
<>Turn switch [xxxx:CurrentlyInChurch] ON (so if you went inside at this point, you can have her be there)


Assuming that Page 2 is the [xxxx:CurrentlyInChurch] switch it would activate right after the switch happens (which is almost immediately after the move event) unless there's a pause of some sort. I thought there would be more conversation or something to pause for a bit, after she'd left.