At my local grocery store the manager had signs made and sunk into buckets of concrete, many fuck-faces still park in the fire lane, I enjoy moving those 25 pound signs, putting them right in front or next to their car so they can't help but see it and hopefully read it.
See attached pics, cops do it too Hence they get the same reminder.
Commonality: offenders are usually over-weight and believe for some made-up reason they are special.
Note: no the police officers were not responding to calls, one was shopping the other was banking.