Correctable Error - Jump Ball

[Todd (Mike) Mullen]

Junior high game with a scoreboard without the team fouls. I do try to keep tract, but . . .

Common foul by B1, I report it, my partner adminsters throw-in, and after a second or two of play, A's Coaches are yelling, "We're in the bonus, we're in the bonus!" I said, "Call a time-out, and I'll check." But I think they thought I was joking. A second later, my partner called a jump ball. Here's where I got confused.

Since it was the first dead ball since the clock had properly started, I knew if they really were in the bonus, we could award the free throw(s) [they were and I knew which player should shoot].

But how do we resume play if:
The arrow favors A?
The arrow favors B?
Does it matter?

I copped out and resumed play with the free throws and did not change the arrow. I checked the rule book when I got home and I think I should have shot the free throws with the lane clear and awarded the ball to the team with the arrow.

Any thoughts?