Interior vent side covers

[A83]

I ordered the interior fiberglass vent side covers for my 83 which were misssing. I got them from Nostalgic.  I had an interior place out carpet on them but they said when they installed the driver side one that they took it back off as they said it was a safety hazard.  They said when they moved the car the workers foot  / leg got caught behind the panel and they almost hit something before they could get the.foot unlodged to apply the brake.  I installed the driver side panel and did not have a problem unless I forced my leg behind the panel.I

Does anyone else have a problem with this or a comment?  The carpet is not thick at all in fact it's kind of thin and I want a thicker carpet on it.