Teaching not letting sensory overload stop an aspergers person from going out in the world

I had 3 people I worked with in New York who had sensory overload issues from other people.  I remember seeing one teenage boy as his eyes filled with terror as he looked into a crowded New York subway car.  He was frozen in fear, but I knew how we could still get on the train.  "Let's see if the next car is less crowded" I suggested.

It can be as simple as that, but if someone with sensory overload knows there are ways that they can go out and do things that will enable  them to do things.  If they don't know how to do this then they will more likely go outside and do things (not being in fear of sensory overload).