Actually, Sheriff Thomas, YES YOU CAN HOLD UP TRAFFIC for a Border Patrol agent to reach you if required. YOU SIR are the top law enforcement official in your county and the Feds have no jurisdiction over how you run your operation! If your citizens complain on your job performance in upholding our Constitution, then shame on them! They will have to be the ones to make the phone calls to their congress and senate representatives on this issue.
You also have the authority to deputize whomever you trust to back you up...STAND TALL and others WILL STAND WITH YOU!