I'm all for figuring everything you can figure out on your own. I agree that time spent listening, playing, listening, and playing over and over to be critical. And as far as the layout of the tuning and basic functions of the pedals, I agree that it's not rocket science. That is, if you have a pedal steel that is already tuned correctly, with properly set up pedals and levers. I didn't - I was in basically a pedal steel desert and needed something.
So when I started not all that many years ago (I was in my mid-late 40s with 30+ years of guitar and initial training before that in classical piano for 7-8 years), I still found a basic video that explained a lot of the tactile, non-cerebral stuff, like tuning, bar control, picking and picking grips, harmonized scales, what the basic stuff is
supposed to sound like, and especially BLOCKING, to be very useful and I think got me a bit of a jump start.
I used the beginning videos by Tim McCasland on Texas Music & Video in Levelland, TX. I was running a vintage guitar store at the time, and I was a dealer for their guitar videos, so I ordered some of their steel videos, and found Tim's very good - very basic but to-the-point on the stuff that was really important.
I see those videos are now on DVD (and VHS if you want) here -
http://www.texasmusicsupply.com/pedal-steel.html - as well as other useful videos by Wally Moyers, Lloyd Maines, and Herb Remington, the latter being for non-pedal steel.
There are lots more options these days, including free stuff on youtube, whole courses by Paul Franklin, and many many other sources. Even a cursory search of the forum will reveal lots of these. I'm mentioning these Texas Music videos because I rarely hear about them anymore, but I found them useful, personally, when I started out without the slightest hope of finding a teacher anywhere near me.