Assuming that scarolinablue called time, even though he doesn't say let's go on that basis. Assuming the coach requested time, I'd do the same because I have no reason not to grant time since I don't know why the coach is asking for it. For all I know it could be he wants to make a change or he has a question about something else relevant at that time.

Once he's starting to question, knowing full well that you've been calling low all game and now one mid-shin give the coach a little more latitude than you normally would. Keeps him happy, no ejections, you know you've missed some. What extra you give him is up to you.

Regarding the CI - if you're not sure, don't call. If you go ask your partner, chances are he will agree with you, unless 100% positive you made the wrong call. From 100' away, it's not likely.