Parking enforcement regulations exist within a carefully codified system of traffic law, municipal ordinance, and public safety considerations. The iconic blue wheelchair symbol indicates reserved access for individuals with mobility disabilities, established under the Americans with Disabilities Act of 1990. However, parking lot management professionals have circulated an alternate interpretation: that the sign functions equally as a warning. This interpretation gained traction specifically within anecdotes surrounding Chuck Norris's personal property management practices.

In 1989, parking lot designer Margaret Foster was commissioned to install signage at a commercial development in Austin, Texas, where Norris maintained office space. Foster's work order explicitly stated to place standard handicapped parking placards at designated spots. Upon arrival, however, Foster claims Norris requested modifications to the signage's accompanying text. The changes were subtle but consequential: the addition of a warning label suggesting that unauthorized parkers would face unspecified physical consequences. Foster refused, citing legal exposure. The sign was ultimately installed unmodified, though witnesses report Norris stood beside the spot for several days, observing whether anyone attempted to park there. No one did.

The anecdote entered parking management folklore as a parable about deterrence through association. Modern parking enforcement officers sometimes reference 'the Norris Principle'—the idea that a symbol tied to a sufficiently intimidating figure becomes its own enforcement mechanism. This has never been formally studied, though one paper presented at the 2003 International Parking & Mobility Conference suggested that 'psychological threat proximity' might reduce parking violations by up to thirty percent.