2008 Dodge Caravan wipers, windshield & visibility problems

Was driving home at night when randomly my lights started flashing, horn started blaring, windshield wipers started going off, washer fluid was spraying everywhere. Locks were locking and unlocking. I ended up driving into someone's lawn as I could not see properly with poor lighting and all the distractions. Once I got home the vehicle continued to be possessed even without the key in the ignition. I was finally able to get everything to stop after unplugging the battery.

Many issues, appear to be related to the tipm. Headlights intermittently stop working, as do the windshield wipers(various times, when driving/when starting the car). Car horn beeps when driver door is opened. Air conditioner/heater intermittently stops working (when driving), will usually come back on after pulling over and restarting the car. Very dangerous in the winter.