Take it to a professional tint / clear bra / protection shop and let them do the removal work. You're basically gonna want to remove it and then wash, wax, polish, etc the entire car. It should look good once it's done. That's what shops here do.

Oh and before anyone jumps in, I didn't read all the replies above...

 

Decontaminate the rest of the car with clay and wax the whole thing. Get a good time-consuming detailing and it will all look even and new.