According to Google Maps, it takes 17 minutes to walk entirely across the isthmus our downtown sits on, from the Edgewater Hotel to the Monona Terrace convention center, and you have to detour around the state capitol to do so. That's about 10 blocks, and between city, county, and private parking structures, significantly longer than the distance between any destination and nearby parking.
But then, back to the topic of the meme, drivers will willingly add another 20 minutes to their commute by perversely choosing to sit in a traffic congestion, when they could park at a free park-and-ride lot and take the BRT downtown. Last time I went with my mother to a show at the performing arts center, we spent over 20 minutes breathing exhaust fumes just waiting to get out of the parking ramp. (Like many Baby Boomers, she's weird about public transit. She lives two blocks from a BRT station; we could've been home already in the time it took to exit the ramp.)