1999 Toyota Camry Transmission Stuck in Park

I have had a 99 Camry sitting idle deciding what to do with it.Finally my neighbor agreed to let me store the car in her garage.Before I took it off the road my mechanic told me I would have to replace the transmission sensor.This is a spare car I inherited so insted of keeping it on the road I dropped the reg and ins and am now storing it.The problem is when I started it up and drove it around the neighborhood the shifting was difficult.As I pulled into the garage I put it in park and realized I wasn't in far enough.When I went to shift into drive to move forward the shift lever was just loose and not responding to any gears.It went up and down the p,n,d,etc but it felt like a cable was gone.I s this on account of the sensor letting go?It seems like I will have to have it towed out of the garage and to my mechanic in the spring.Any thoughts.Thanks