The 3-day notice is something that would be done in order to then be able to file for an eviction. The notice itself can not force you out. The police will not escort you off the premises. Only the sheriff can do that and for that there must be a Writ of Possession issued and for that there must be a Final Judgment and for that there must be a Complaint served on you. So, there is a process.
An eviction can be used only when there is a landlord-tenant relationship. More details would have to be provided but it is uncertain whether such a relationship existed. You may be a guest, and if that is the case, then you can not be "evicted". You can be removed from the premises under a different legal action, that being "Unlawful Detainer" which is how the owner of a property can have some one who came onto the property lawfully but then refuses to leave when asked to can obtain possession.
Either way, your time in the premises will be short.
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Because rent appears to not have been paid.
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