No, they let me go with a warning, but while the one was talking to me, the other cop was peering in all my windows, so I'm pretty sure it was all an excuse to inspect people cars...
Why wouldn't you use an appropriate respirator for that task? Any respirator would probably be okay, but I'm a big fan of the 3M 7500 series for comfort and exhaust control in case you're wearing a face shield.
Yeah, I found the same issue once I finally got my hands on any real N95s. Earlier I had built a mod for a cheap ARF-A gas mask that filtered both intake and exhaust using 3M P100 filters and that was dramatically superior to the airflow, moisture control, and overall comfort of the N95s I tried. As an added benefit, the eye coverings also kept me from absently touching my eyes like I often do, which is a major disease vector. I just look like a dork wearing it, but I'm used to that.
A lot of people still don't understand that most masks are only really good for protecting others rather than the wearer and that this was the main point of asking people to wear them. I've seen people have revelations and change their opinion about masks upon having this explained.
There's a plug-in that automates the process: Batchcamp for chrome and I can't remember the Firefox one atm.