End of game clock issue

[oc]

yes what should the official do about the clock.

This happened in a faculty/student game reffed by teachers and the clock was run by volunteers. I was B1 and got the rebound but it was obvious the timer should have ran some time off. In this situation, everyone knows I am an official so they asked me-I suggested putting the clock at 0.3, because sometime should have gone off the clock, and now we could only possibly do a tip. Everyone agreed that was fair and played on. (We won in overtime by the way.)

If this was a real game and I was the R I think I would handle it the same way-but looking for second opinions.