Umm .. I had one person give me a hard time when I was coming by car. Had to freakin drive back and get my diploma in the frame - next guy at the border literally waved me in.
Haha same here. I'm a TN-1 Software Engineer. I was told at LAX one time that the guy didn't like TNs and would send me to secondary. Talked him down eventually and gave him the papers he wanted but automatic is quite the overstatement. Definitely get a NEXUS card if you can.