I think your interpretation of the expression does in fact convey the meaning although it is not the one I would have chosen. Even your introduction of electricity is justified because rubbing things together does produce static electricity.
I would say 'inflame the very air in the Park, 'agitate' would be another possibility.
The park in question being Green Park, Piccadilly and Arlington St are very busy with traffic including many double decker buses and if you stand in Piccadilly you can feel the movement of air. For me Green Park is an island of tranquility in a very busy area but I do understand the writers meaning because if you are on the edge of the park that is probably the impression that you would get.
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