If your RV is left with a dealer, repairman, or wrecker service for more than 40 days after an agreed-upon retrieval date (or 40 days after being turned over if no date is set), if it's left unattended on a public road for at least five days, or if it's lawfully towed to someone else's property at a law enforcement officer's request and isn't claimed within 40 days, it's considered to have been abandoned in Mississippi. The best way to avoid abandoning a vehicle and facing legal repercussions is to dispose of it properly.