I just bought my first gun, Glock 19, been going to a range the last few weeks or so, joined it for an annual membership.
I live near a state border, once I have my CCW, it will make it easier going back and forth, since one state is closed compartment in vehicle (and no on person carry w/out ccw), and the neighboring state is open carry / open in vehicle, so it makes it hard on me going back and forth until CCW...
Anyway, a couple things I like about my range, if you're legal to CCW, they told me it was cool to come in and out CCW, just don't pull out the gun until you're at the range. The other thing is until I CCW, it's on my side of the line, so I can just put the gun into my console all the way to and from the range.
I unload it and slip it into my bag as I enter, and I keep (2) 15rd, and (1) 33rd mags ready w/ SD ammo, regardless of what I'm shooting at the range, so I never run out of the important stuff, and am ready to go hot as soon as I'm out the door, or right before I leave, and pop it in the console and go. I also pay particular attention to my surroundings all the way home after leaving the range.
That is just for my protection, if I had all the stuff the OP mentioned, I would certainly be as careful, unless I could think of a way to be more careful. I read those reports on people being targeted after a range trip, and I took that very seriously, personally. Why take a chance.
Karz