That’s because the stickers do not cost anything. Also, at the very top of the screen, it will say “Select ‘Windshield-mounted’ Transponder type for a $0 I-PASS Sticker Tag.” If you see ...
It encourages customers to always keep their transponder in their vehicle and helps defray the extra cost of processing video-based toll payments. “With the transition to I-PASS sticker tags ...