I thought the main advantage of re-usable rocket use on the ISS was the potential for providing an economical takeout service for astronauts... it needs to be hot on arrival, but not too hot.

They're experimenting with cooking chicken on an engine nozzle:

https://www.chicagotribune.com/news/ct-xpm-1988-06-23-880109...

30 minutes or your money back?

I have changed my mind in the last 19 minutes, you are exactly what space needs!

Throw the hot stuff on the rocket exhaust manifold and hang the iced latte out the side, everything will be just right when you deliver it.

Definitely, there are iss docking speed limits to avoid collision. It's happened before.