I think parents would be crazy to bring a stroller through the dealer hall. It is so crowded, people get bumped all the time. It would be terrible if a stroller with a very young child got knocked over.
Oh man, I almost did this last year. I have no peripheral vision, but I wasn't using my white cane, because the dealer hall is so crowded it would have been almost useless, not to mention a tripping hazard for other people. I was with my husband so it wasn't a big deal, but of course the one time I wasn't, I turned around to get back to where he was and suddenly there was a baby in a very low stroller, right at ankle height.
I can't see much below my chin without actively looking down and I wasn't expecting anything so low to the ground like that in a big crowd of tall adults packed so close together. Fortunately, I only shuffled into him a little (again, due to the crowd) and was then able to stop myself before really crashing into the stroller. It was scary, but his dad was super understanding. Little dude was somehow sound asleep, though.
Of course, you could make the argument that I was equally crazy for being there, I guess, but I had a guide 99% of the time.
As to OP's question, we drive up from KY and stay at an off-site hotel. However, we park nearby, so we take games back to our van throughout the day. The short walk is a nice break from the crowds. The van has pretty heavily tinted back windows and the lot where we parked was attended. No issues were had.