Back to the op, did u know why u were not asked to go in for the 2nd time~tour at the closer location? That would be a better commute for you.
It won't be a conflict of interest : they'll just verify if u worked there from the dates u filled in the application, plus u r not going to work at both companies simultaneously.
I know of a Fedex Home Delivery driver that comes from working UPS preload though... like i said, FX Ground n HD drivers aren't employees of FX, but some middle-man subcontractor so its up to that subcontractor that his drivers follow the HOS rules, which this particular driver is breaking