It's Never Simple

[twref]

Need some help with this one. The situation happened to me at a JUCO game on Saturday. Scramble for a loose ball near the center circle with multiple players on the ground. Common foul is called on A1 which was A's 6th team foul. While still on the ground A2 gets tangled with B2/A2 kicks at (but makes no contact) B2 and B2 responds with throwing the ball at A2. Players get to their feet looking like it is going to be a fight. B6 comes off the bench and engages A3. B6 is escorted off the court by B Asst. Coach to an area behind B's Bench and teams are seperated to allow for a consultation amoung the officials. Roughly 20 seconds later B6 returns to the floor and violently pushes A3 to the floor. Since B was the road team B6 was escorted to the locker room where he was monitored by B Asst. Coach. Police were called by the site manager and the game went on without further interuption. We administered:

(1) Common foul on A1.
(2) Technical Foul on B2
(3) Technical Foul on A2
(4) Technical Foul on B6/Indirect to B Head Coach and B6 DQ
(5) 2nd Technical Foul on B6 and 2nd Indirect to B Head Coach for B6 coming back onto the court.
(6) Team A shot four free throws and B got the ball based on point of interruption.

Questions:

(1) Is the kick by A2 and the throwing of the ball by B2 independent acts requiring shooting of free throws or can they be classified (as we did)simultaneous and offsetting technical fouls?
(2) B6 was DQ based on leaving the bench the first time. Once he's DQ'd is he no longer a player and thus cannot be given another T?
(3) Does the Coach receive anything for B6 coming onto the floor the 2nd time and/or the flagrant push?
(4) Are any/all of the fouls counted as team fouls?
(5) Even though B6 is in the locker room being monitored by Asst. Coach should we have restarted the game before the police arrived?

Please forward thoughts!! Thanks much.