So my Roadster has, for the first time, started acting funny on me.
Okay, maybe not the first time, but the first in a while.
Anyway, last year, my horn suddenly came on while i was driving and wouldn't shut off. The only way to shut it off was to take turn off the car or disconnect the horn altogether.
I did the later.

This year, the problem with the horn not only continues, I noticed my fan would stay on even after removing the key from the ignition.
Upon further inspection I realized the car would stay in the on position (you know when you turn the key once which primes the car before actually starting the engine) even when I would remove the key completely.
The only way to shut it down was to disconnect the battery.
What's going on?
Any thoughts?
Has anyone else had this issue?
Is it an ignition switch issue?
A fuse box or electrical wiring issue?
I'd love to get you all's feedback.

Thanks in advance.