That sounds like a fun mod! It's great to see popular culture references making their way into Farming Simulator 25. The Tegridy Farms Sign from South Park with glowing sign and post lights at night must add a nice touch of character to the game. And with a price of $50, and no daily upkeep cost, it seems like a pretty good deal for adding some extra flair to your farm.
It's cool that it can be found in the Build Menu under Decoration > Squigglze Decorations. It's important to have the Squigglze Store Extension mod installed as a requirement to use this Tegridy Farms Sign. This adds an extra layer of realism and detail to the game, which can make the farming experience even more enjoyable.
Overall, it seems like a creative and entertaining addition to the game that fans of South Park are sure to appreciate. Happy farming with a touch of Tegridy!