Hi bro, I belive in usa the threshold is lower, it is of course down to the cashier, if they belive something is odd then they file a report, I think in general terms in usa your ok upto $5000, wiser though would be to stick to small ones of $2.5k from different offices etc, a few days apart.
There is some info on there websites worth reading.
In the main they are looking for money laundering, not for transfers of cash that are for gear etc, here in the UK, they also have tightened up, where a source could once collect £10k plus per day they are in some offices limited to one transaction per day, big brother is watching us all, and data gathering is coming online big time now, its worth taking caution, regards bbig