92 voyager van has been setting for several months, got running went to move and right rear wheel was locked up, put into 1st gear to slowly move van and finally freed up, went to put lever back into park and it will not budge, stuck in low gear, turned off engine and ignition won't return to off position in order to get key out, tried working lever and key together to free up lever or remove key, but no luck, front wheels are not locked, they will turn, any suggestions or help would be greatly appreciated!