I highly doubt UPS even tests for anything like that. More than likely they do a 6 panel test on the low end, up to 12 on the high end: weed, coke, opiates, amphetamines, benzos, PCP, barbiturates, methadone, synthetic weed, some anti-depressants. Maybe a couple others but they aren't PEDs.
Doubtful, usually employment tests are 5 panel meaning they test for 5 illegal substances. These are usually cocaine, amphetamines, thc (marijuana), opiates, and methamphetamine. You should be fine as anavar doesn't fit into any of these categories.