By the Wikipedia definition above every criminal who flees the country to avoid arrest is by definition in exile. Skipping town because you want to avoid a crime isn't being in exile, it is being on the run.
Websters does not use this exact definition, being a more compact format than wikipedia, but if you look under the examples in Websters you will see "Many chose to live as exiles rather than face persecution." http://www.merriam-webster.com/dictionary/exile
By the Wikipedia definition above every criminal who flees the country to avoid arrest is by definition in exile. Skipping town because you want to avoid a crime isn't being in exile, it is being on the run.