A disgruntled member of the public left a note on an ambulance criticising them for blocking an entrance.
The note was placed on the windscreen of the emergency vehicle in Bath, telling them they could have moved forward "10 yards".
South Western Ambulance Service tweeted the picture after paramedics attended a "serious incident".
They said they tried their hardest not to block people, but added it was not always possible to park in the most convenient place.
The note received mixed comments on social media with many claiming the writer "should be ashamed".
Other however agreed, saying, "a tiny little bit of thought would have prevented this".