I recently purchased a 2018 R/T 6 speed manual. I have been having a problem taking it out of gear after parking on any type of incline. I have left it in 1st and reverse and it still locks in that gear. I turn it off and start it again and it usually comes out of gear. I have my clutch completely depressed, emergency brake off and foot on brake petal. Any suggestions as to what I am doing wrong? It has 20K miles and is precertified. Thank you!!