I am not an expert, but I did stay at Holiday Inn a few times over the years..

If communications with the town still have no avail, then get the media and DEP involved. Take photos, document, etc. and forward to them.

When I say media, I mean WFSB, WTNH, FOX and so forth - they will eat this up, especially if you have pictures and video of what you explained..

Good Luck..