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Possible Solutions...
I've used a black shroud to minimise stray light at the eyepiece, stops reflections etc.... Just pop it over your head and the eyepiece.
An extra long dew shield may also protect the primary lens from stray light entering the primary and stray reflections also. Can't do much about skyglow from white light though. If there's the slightest amount of dust or fog in the air, it will reflect back onto the primary.
It's hard to get good night vision when there is stray white light about, ruins it. I suppose a good pair of red lens spectacles would help. When you are ready to view just take them off under the black shroud.
If those street lights had a polarised coatings on the transparent covers, they could still illuminate the street (keeping councils and concerned citizens happy) but, if you then use a polarised filter to block it at the telescope....That could be an option, but councils won't help the Astronomy community on this one I don't think.
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