free throw w/T administration

[BEAREF]

Situation presented to me for clarification that I'd like a little help on.

After the first free throw of two by B2 a technical foul is called on A1...and Coach A reacts in such a way that a Technical is also charged to him. So there is 1 free throw left to shoot from the foul in the act of shooting which would be followed by the 4 shots from the technical. The question is whether the lane would be cleared for all 5 free throws.

If you have a rules or casebook reference that would be helpful. My first thought was that yes, the lane would be cleared.

I'd like to hear what you all have to say. Thanks.