I understand why, but wish that rule was clearly posted somewhere. Say....I don't know.....on their website, or on a sign at the entrance or something. The guy was still an A-hole regardless.
Oh well. At least I have a shiny new harbor freight power supply/ jumper. I'm sure I'll get plenty of use out of it anyway. Pretty badass for the price. Has got a work light, 2 dc cigarette plugs, a USB power port. Almost got the bigger one that came with all of that, plus a built in 300psi air compressor and power inverter but thought it was a bit too heavy to be lugging around a junkyard.