I wonder if anyone noticed.
The attire of the person with AS may set them apart because they wear what is comfortable, rather than what is fashionable. (Tactile sensitivity plus anxiety in new situations means getting electrodes on the first time can be very difficult.) The teenager who wears sweat-pants to school when everyone else wears jeans likely has AS. This lack of sartorial acumen is due to a combination of sensory sensitivity and not reading fashion cues.