If any, minimal. The goods news though is, you didn't end up with the derailleur in the spokes.
Might I suggest in the future that you consider a second bike - lower cost, simpler...for exactly this reason. A backup.
Most cyclists I know own two bikes - with the second usually a single speed/coaster/old 3-speed/junker. But some do have their second being similar to the primary just because they can.
.
The other option is to have a spare rear wheel - but that means insuring both hubs mirror each other so that swaps can be made with minimal derailleur adjustements.
=8-)
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5000+ wheels built since 1984...
Disclaimer:
1. I do not claim to be an expert in bicycle mechanics despite my experience.
2. I like anyone will comment in other areas.
3. I do not own the preexisting concepts of DISH and ERD.
4. I will provide information as I always have to others that I believe will help them protect themselves from unscrupulous mechanics.
5. My all time favorite book is:
Kahane, Howard. Logic and Contemporary Rhetoric: The Use of Reason in Everyday Life