High heels in the mud?

OK, so.. I am currently in the midst of writing a novel. My female character has been forced to continue on with her given assignment after her car has become stuck in the mud.
She is in high heels, but decides not to continue barefoot in case of potentially stepping on something to cause an injury. But, after a time, the ground turns muddy.

Has anyone ever had to walk through mud in heels? I'm requiring insight.
High heels in the mud?
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