What part of NC?
Regardless, I would siphon out the old gas and mix it slowly (in small portions) with the gas you burn in other vehicles or lawncare equipment. A little bit mixed in will only slightly affect the larger volume and you won't have to wait for a collection day.
As Poolboy said, a number of other things will need attention. If you parked the car with the float bowls full you are likely to find the float valves gummed up and the mixture jet and needle may also be gummed up. As a minimum I would consider removing the float bowls to clean everything out before trying new gas. On our GT6 this can be done (with care) without removing its carbs from the intake.
Don't forget that after you put the new gas in the tank you should pump a bit of fuel through the system into a catch bucket, then replace the old filters. That should prevent old gas and debris from making it to your carbs.
Unrelated to the engine's gas and oil, if parked for 5 years, you may also want to flush the brake system to get new fluid in there.