So the "security guard" at the Santa Fe depot was a rent-a-cop? Looks as though that might be a gap in communications, if official policy is communicated by Amtrak, NCTD and MTS to their respective police but maybe not to the rent-a-cops. (A related thought: are rent-a-cops given basic training on safety rules to be observed around live tracks? A railroad station is not a mall or a bank.)