We moved to Decatur in 2008.
Wahoo's valets have been parking cars on that sidewalk for 10 years . . . because, of course, they can use a publicly owned right-of-way for their for-profit business. The northbound slip road also is illegally used for valet parking.
I emailed the police chief about it some time ago.
Wahoo's valets have been parking cars on that sidewalk for 10 years, still.

Did you call PD?

I complained about this before but got nothing from it:
2017-April: wahoo parking (decatur,ga)

https://www.youtube.com/watch?v=N6O8RQqffXg

Decatur Police - P Nembheard, This is still occurring regularly. I know we want to be business friendly and I do enjoy the food at Wahoo but the sidewalk is not an acceptable parking space. If I were to park my own vehicle on the sidewalk randomly along College Ave I would expect that it would be ticketed or towed.

You should call when it occurs. By the time you post here and the PD sees it, the offenders could very well be gone.

Still happening every weekend.
Can we all just park on the sidewalks wherever we want or is it allowed because it's a valet business and there is some special ordinance permitting them to be a nuisance?

Thanks