ependydad,
Lucky for you that it's a small side street and allthough you didn't mention it, probably a very low volume traffic street. Sounds like you do the best you can with your situation and take reasonable precautions.
Wrong way "parking" of any licensed vehicle or trailer is not allowed in most cities or states as the tail lights/reflectors of the parked item must face the on coming traffic in most states. It's a safety issue. Some states also require the valid license plate to be facing the oncoming traffic. I know it is the law here but it may be different where you live. My younger brother was a sheriff here for many years and tells me that's all that's needed to avoid a citation around here.
I don't know how long you have been "wrong way" parking of your trailer but you may want to find out the local laws or if you need to temporarily attach even clamped etc on basic legal sized red reflectors on the front of your 5th wheel when parking the wrong way in the locality you live in. Don't know if it's the same where you live but it's so cheap to add and worth checking out the regulations before an issue arises. Peace of mind might be worth it.
Next:
As to the others snide remarks about "dumb" floorplans etc, it appears they have trouble reading or comprehending what they must have read. My post began with the word "Deb" and none of them have claimed their names to be "Deb"! Also, I precluded my very valid "dumb" reference with the words at the beginning of the comment with "For us, an RV cannot have". Notice the, FOR US! Enough said!
President Ronald Reagan said it best and ohhh so true by: Not holding another's youth and inexperiencce against them!
Deb,
I'm glad you were able to open the slide enough when inside the building to help solve your issues. Any chance the 5th wheel can be skooched over a towards the RV's door side just enough to fully open the slide? Sounds like it would take maybe about 8". Very smart thinking and actions with the caulk gun and it's so cheap and easy to do. It will repay you and your's with more comfort for years on end. I can give you some additional hints on simple and cheap things to do to further enhance cold or hot weather comfort with your 5th wheel if you desire.