Accidently put half of turtle wax car soap in my coolant reservoir

It will most likely be ok but what I don't know is how the wax and ethylene glycol will react. There is a chance that is could cause gelling. If it does then it will clog the radiator and other components.

I would make sure you get the cooling system flushed as soon as possible.

https://www.2carpros.com/articles/coolant-flush-and-refill-all-cars

Please let us know if you have other questions or how this turns out. Thanks