It is the height of Am Ratzius to say that we need to worry about maris arin when utilizing our right under US law, sorry pal but it is obvious that you have no clue about the rules in regards to ADA.
Maris ain does not even apply to the use of an eruv, it is safely assumes that if a frum person is pushing a stroller on shabbos there is a eruv. In fact the eruv and US law is a good analogy there were several cases of municipalities that were sued under Rluipa [Westhampton, Tenafly, Mahwah etal] for not allowing a eruv to be built, were we worried about maris ain when the eruv was built or our rights under US law.
Under normal circumstances I would have advised seeking out your LOR for guidance but I forgot you only advocate that if the answer would fit the agenda you are pushing otherwise you disregard it.