How do I reach these clearance lights?

I used a ladder that I made for my MH out of an old step ladder using the back section of the step ladder with the skinny rungs. I added two standoffs that pivot to 90 degrees at the top from an old boat ladder with plastic end caps. The stand offs went on either side of the center posts on the wind shield. The glass is strong enough to support my weight. I weight 190 lbs but the wind shield based on the angle sees much less than that. I used the ladder to change bulbs, caulk around lights which tend to be a source of leaks and to polish the area above the windshield. Just from your picture and looking at the slope of your windshield a ladder would rest against the front cap anyways and not the windshield just block the base of the ladder.