You could be a bit out of level and the lock bolt is binding due to flexing and improper leveling. If you can get in, I would definitely do a manual level and "null/reset" the leveling system, whichever you are using, air or hydraulic. If you can get into the basement area, you should be able to bleed the air leveling system or can access from the generator area via tow truck coupler . Not sure where your hydraulic is, but should also be able to access in the generator area and bleed off, of course if leveling and binding is the issue. May also try a 12T hydraulic jack in the door area of the frame, but be careful with this.
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